For their first mission, the Master enters the world of Fire Emblem: Awakening.

After a hundred or so years of staying in the shadows, the Master runs into Chrom's army, the Shepards, after they saved the Master from being ambushed by Risen. Seeing himself in the stranger, the groups tactician (Robin) extended an offer to the Master, inviting them to join the cause. Touched by his kindness, the Master accepts.

Eventually, the Master creates their first 'identity' - Komi, a strange woman who knew little of the outside world.

Through their battles and talks together, the tactician, Robin, and Komi catch feelings for one another, and fall in love.

After the two year time-skip, and the introduction of the Shepard's children from the future, Komi begins to feel left out amongst her newlywed peers. She does not truly belong in this world, and she is unable to have children of her own.

... But that isn't enough for the Master to give up.

Komi studies magic for weeks, trying to find a way to make herself more "human" so she and Robin could have a child together, but she continues to fail. A mysterious hooded figure visits her one night with a baby, one with dragon's blood. Little did Komi know that this encounter would curse her in the years that followed.

Komi brings the infant to her lover, and they name this child [REDACTED], and raise them as if the baby had been their very own.

After a series of tragic events (Emmeryn’s assassination by Validar, and Robin’s corruption into Grima’s vessel), Komi retreats deep into the woods to raise the child on her own. Knowing she was unable to intervene with this world’s events, despite how much she wanted to. The Master’s attachment to the worlds they come across will only get worse from here.

One night, while raising the child, Komi discovers a Rift and seals it. It’s then that she remembers why she’s even here, and that she can’t stay. So, she makes preparations so that her child will be able to survive on their own, as they cannot come with her, being a resident of this world. And once that is done, Komi spends her last moments with her child playing a game. And then, she leaves.

The Master enters the world of Gravity Falls.

Reusing their previous identity, Komi, she takes a further step back from allowing herself to interact with the residents, to avoid any kind of attachment.

The town of Gravity Falls itself becomes Komi's fixation, curious as to why the place is so strange and weird compared to other places in it's world. She begins to conduct her own studies, silently observing anything she comes across and making notes on it.

This behavior catches the attention of a defeated and imprisoned Bill Cipher, who creates a Book of Bill as a way to communicate with the Master.

The gullible Komi falls for the demon's charms and promises of knowledge, and strikes a deal — if she can create a new vessel for him, he will grant her one wish. And her wish? Simply; the ability to dream.

For months, the two grow closer, as Komi begins to construct a puppet/doll-like body using a humanoid figure combined with Bill's likeness. It's here, the Master realizes, that this talent of 'dollmaking' they have seems to be natural. Too natural. And thus, the Master begins to question if they had any kind of life before becoming who they are now.

Halfway through the vessel's completion, Bill decides to incentivize Komi by granting her wish early; he takes the Master into their own "mind," as if they were dreaming. In this dream, they both discover something hidden within the Master's subconscious (or, Black Box)—memories of Kari and Kaori. They were never deleted; just locked away.

The Master enters the world of Resident Evil.

Using the name Komi Kawasaki, she eventually finds herself taken in by Umbrella, and is used as a test subject for the Progenitor Virus for a brief period (until they realize her body doesn't react to it).

For a while, Komi works directly with one of the founders of Umbrella: Edward Ashford, and his son Alexander.

One of Komi’s first missions is to act as a babysitter/bodyguard for twins Alexia and Alfred Ashford, the genetically modified clones of Veronica Ashford, who were created by Alexander Ashford. The project involving the creation of the twins is kept secret due to the research being considered “controversial,” but Komi takes a great interest in it. However, she doesn't get the chance to ask Alexander about any of it.

1988 - As Oswell Spencer plots to assassinate this other fellow co-founder, he gives Komi a new purpose at Umbrella — to become a spy on the inside. She is given the codename ‘Ronin’, and her missions are simple; make sure no one even dares to think about betraying Umbrella. An easy job. She doesn’t even have to worry too much about the ‘no intervention’ rule, as Umbrella has their own ways of sniffing out and dealing with whistleblowers and traitors. Komi, or Ronin, is simply an observer. A source they can use to confirm any suspicions.

1990s - Wesker leaves Umbrella to join the US military. During this time, Komi is temporarily assigned to work alongside Birkin, mainly because another unnamed Umbrella scientist needed to be investigated. She’s only his assistant for two years before the suspect is taken care of and Komi is transferred somewhere else for a time.

1996 - Wesker is reassigned by Umbrella, who were able to enact him to be the team captain of the newly formed S.T.A.R.S. team under the Raccoon City Police Department. Umbrella grows suspicious of both Albert Wesker and William Birkin, suspecting that they may try to betray Umbrella, due to Wesker’s recent history of working with the US Military and Birkin’s manic outbursts observed by his wife, Annette, and his coworkers. With Birkin already having so many eyes on him, Umbrella enlist Komi to join S.T.A.R.S. team Alpha, with her secret mission being to keep an eye on Wesker and confirm any suspicions from her supervisor (Sergei Vladimir).

Ecliptic Express Incident July 23rd, 1998 - Komi overhears Wesker and Birkin discussing leaving Umbrella. Birkin provides Wesker with a special version of the T-virus, as part of a plan Wesker has to fake his death. Wesker promises that he’ll stay in contact with Birkin after the mission, to keep an eye on him just in case. Later on, Wesker will try to return Birkin’s favor for basically saving his life.

Mansion Incident July 24th, 1998 - Komi originally partners up with Chris Redfield, but after the Plant 42 encounter, Komi sticks with Wesker instead. Wesker constantly tries to get Komi off his back by purposefully leaving her in traps, to zombies, etc. But she always comes back barely harmed to follow him around.

Before Wesker releases the Tyrant, Komi reveals her true role as a spy, which he’d sort of suspected already. They have a brief talk about what they’ll do after this, with Wesker offering for Komi to join him. She refuses, then gives him a cryptic message of ‘do whatever you please, as long as it’s interesting, I’ll be there’, and leaves.

Pre-September 1998 - Komi fails to report her mission status to Sergei Vladimir, who promptly removes Wesker’s ability to access the Umbrella data files. Once she shows her face around Umbrella again, they give her a warning and a new mission. Knowing she’s on their hit list now, Komi begins preparations for her inevitable departure from the organization.

Umbrella has Komi join the G-virus research team, as one of Birkin’s project supervisors. The two were already familiar because of interactions in the past. They have a lot to catch up on, as well, with Birkin even allowing Komi to babysit his daughter Sherry for a few nights when he and Annette were too busy with work.

Birkin begins acting even more manic and erratic, because he knows Umbrella plans to get rid of him. He contacts Wesker in secret, who then plans to send a rescue team his way, as a way to return the favor. He also contacts the US government, who promise to rescue him and his family if he sells the G-virus sample to them.

Operation: NESTWRECKER September 23rd, 1998 - HUNK’s team takes an anonymous tip on where Birkin is, and they attempt to arrest him. He’s however killed by one of the squad members. Needless to say, Wesker’s rescue team doesn't reach Birkin in time. Komi stays behind in NEST, wanting to stick around to watch the destruction unfold around her. This is due to her attachment to William Birkin, his wife Annette, and their daughter Sherry. She simply wants to make sure at least one of them makes it out alive in the end.

Raccoon City Destruction Incident September 23rd-October 1st, 1998 - Komi finds herself not only being hunted by Mr. X (ordered to kill any survivor it sees), also by Nemesis. Umbrella decided that she served her purpose to them, and that she's more of a risk to the company, and so they added her to Nemesis’s target list. Komi gets frustrated by this, only because she was never a real member of S.T.A.R.S. and now she has to worry about getting the attention of the Tyrants.

Komi briefly encounters Ada Wong, who recognizes her as someone Wesker told her to keep an eye out for. She gives Komi a message regarding Wesker’s recent activity.

Komi escapes Raccoon City, after Ada directs her towards the rescue team Wesker sent for Birkin. Unfortunately, each team member got killed by the monsters roaming the city, so Komi steals their helicopter and goes on her own way.

The Week Before the Rockfort Island Incident December 20th, 1998 - Komi visits the island for the purpose of speaking to Alexia Ashford. But Alexia was in cryostasis and she could tell that Alfred was pretending to be her in her place. Komi instead asked Alfred about genetic engineering, though Alfred saw her as an enemy (and was angered by her personal questions), and he refused to help her, despite their past. So Komi just made copies of Alexander’s research and left the island.

Rockfort Island Incident December 27th-29th, 1998 - During the events of the game, Wesker finds evidence that Komi had been there just the week before, and it motivates him to find her again now that he knows she survived Raccoon City.

Caucasus Outbreak 2003 - By chance, Komi and Wesker run into each other while they both went to investigate a facility in Russia. The first week she had been there, an outbreak happened (plotted by Wesker and an Umbrella employee he tricked into being an inside man, Elroy). It affected a nearby village.

Komi joins Wesker in the Organization after the latter kills Sergei, the pair finally reunited at last. And thus their relationship begins.

Abduction of the President's Daughter Incident August 2004 - Komi gets bored of the business work she has to do with the Organization, so she catches a ride with Ada and goes to Spain with her.

Wesker finds out and gets upset at Komi’s reckless behavior, but lets her do whatever she wants as long as she doesn't interfere with Ada’s mission, or anything else going on within the area. She’s only here out of curiosity, anyway.

Komi runs into Luis Serra-Navarro, and takes a liking to him. She witnesses his unfortunate death from a distance.

Ada goes AWOL and takes off with the Dominant sample of the Las Plagas parasite that Wesker hired her to fetch for him, which pisses him off. Still in the village, Komi meets back up with some members of the Organization, dragging around Jack Krauser’s mutated corpse. Since Krauser was mutated with a Dominant Las Plagas parasite, Wesker finds a use for his remains.

Penamstan Conspiracy Incidents 2006 - Sometime before this, Komi and Wesker join TRICELL.

General Wilson was conspiring with TRICELL to develop bioweapons, and this gets exposed, and he is terminated from his position by the U.S. military. Wilson is taken into TRICELL’s custody, and Komi was part of the team that was sent to fetch him.

During this time, Komi and Wesker have been working on creating their own children, using Ashford’s research. This is called the Genesis Project. The children are named Jack and Jill, after the nursery rhyme, because Komi thought the names Hansel and Gretel were too corny. (An Evillious callback, as Komi is distantly related to Hansel and Gretel Moonlit).

Raid on the Spencer Estate August 2006 - The BSAA was given a tip from a reliable source on Spencer's whereabouts. BSAA operators Chris Redfield and Jill Valentine went to the estate on that same night in the hopes of arresting the fugitive company founder and gaining the whereabouts of Wesker himself. After Jill jumps out the window with Wesker, Wesker saves Jill and calls for a rescue helicopter to retrieve them both.

Wesker begins to run experiments on Jill, and creates a device he uses to brainwash and control her. Feeling guilty for her old friend's situation, knowing she can't intervene, Komi does all that she can to ease Jill's pain.

Kijuju Autonomous Zone Incident 2008-March 2009 - Komi disagrees with Wesker’s Uroboros Virus. Shortly before the first Wesker boss fight, Komi and Wesker argue, make love one last time, and Komi gets in a helicopter and leaves.

Later on, Chris tells Komi what happened to Wesker after she turns herself into the BSAA, and she’s obviously devastated.

Also, at some point, the laboratory that Project Genesis was taking place is bombed, which kills everyone inside, including the children Jack and Jill. The Progenitor Virus within them causes them to return as Tyrant-esc humans, which results in their blonde hair turning black and their skin turning gray. Komi is separated from her children for a while, as she think they’re dead, which adds to her grief, and anger towards Chris.