Kirigiri Kyoko

Kyoko Kirigiri, initially appearing in Off Season 1, is a student in Hope's Peak Academy's Class 78th, and a participant of the Killing School Life. Though in our timeline it seems she has arrived in XCOM and TFR for an unknown reason, possibly Richtofen?

Off Season 1
Kirigiri appeared early on and became a great soldier for XCOM, though notably she bonded with Richtofen, who at the time was a major jobber, leaving OP absolutely SETHIG.

Soon after, in Operation Crypt Killer, the whole team (including Kirigiri and Richtofen) died, Kirigiri being the last one, dying to a snake ayy giving her snu snu.

Later on a second Kirigiri appeared, and much to OPs despair, a second Richtofen, luckily for OP, this Richtofen wanted to fuck the waifu picked by chat: Aigis, instead.

In the final mission, this Kirigiri was sadly a major jobber, regularly panicking, and at one point, actively shooting at Hopeman himself during the final fight. Chat detectives deduced this may be due to Richtofen not being in the final mission to comfort her.

Season 2
A hooded girl very reminiscent of Kirigiri appeared alongside Richtofen in [S2E3], giving him the support (and the distraction) needed in order to beat Chosen Hunter who was experiencing incel rage.

As it turns out, she's actually fucking dead and Richtofen confirmed a necrophile. It's assumed he's using her body as a vessel for Samantha, or maybe something else?