Okay. So hear me out guys. We have a set up for a Vanilla where he treats her to food and has a successful career to do it and she ends up opening a curry shop where she can eat all the time.
I can already see the sequal! The MC and the lady from the office team up to help the dead girls ghost move on and it leads to a threesome where she agrees to haunt them and NOT kill them in exchange for sex.
That's a great idea. Then we can somehow turn it into a vanilla story where they both find out they have the same kink of fucking the other while they're unconscious.
The way it seemed to me was that the teacher initially raped her until she enjoyed it. At least judging from that one panel flashback. Seemed like she had Stockholmes syndrome. Just my opinion though.
I did like how he smiled a bit when he heard she got a new job. And how he was trying to get her to go out more to better herself as a person. So we NEED A VANILLA SEQUAL DAMMIT!!!!!!