@l_n1ght_l Ah, sorry for not responding earlier! (Y/n) from the prologue and (Y/n) ingame are supposed to be pretty much the same with a few minor (or not so minor) differences. Although (Y/n) ingame had supposedly been given an official ultimate, she refuses to accept that someone could have such a stupid Ultimate and has chosen to completely forget anything about her Ultimate. They're both meant to be pretty average and boring, not someone most would bother to remember at all. Assuming the Kaito, Shuichi and Kaede tapes were real, (Y/n) really was just a bored volunteer done with life. Prologue (Y/n) is still rather frightened by death, she's far more like any other background character you'd see in your average daily anime, yet ingame (Y/n) is a bit more different. She has somewhat more disturbed thoughts and is more suicidal, she simultaneously despises and loves people as well. Both of them, unlike Shuichi, love gossip. Their whole thing is being boring enough to blend into any background while observing the world around them, sometimes noticing things that people more likely to be main characters don't. While they're both bored, prologue (Y/n) is more fearful of death & values her life more, she's also somewhat kinder and less likely to commit any murders. Prologue (Y/n) also likes to have friends more. Ingame (Y/n) is, as I mentioned, somewhat suicidal, not REALLY caring if she dies or not while also feeling a bit of concern over where she'd go if she did die. She's clearly not so kind, being a bit more violent and far more likely to commit a murder if pressured enough. She also doesn't care for having friends much, unlike prologue (Y/n), although this probably won't be mentioned (but possibly hinted at). Although for the friends she does have, she'll genuinely try to watch out for them and care more about them than herself. They're both pessimistic in a sense, as well as unmemorable and average, but those are the main differences, even if not so noticeable.