>>718802594 (OP)
A hitman style game would never work because in the Hitman games, you go to new locations every time, here you're returning to the crime scene every day for 10 weeks. If an actual murder occurred at a school, police would be there every day until the investigation was concluded.
What I would do is
>make it a visual novel
>the set up is you have killed a single student in the prologue
>the rest of the game is a cat and mouse game between you and the police as you try to avoid arrest for that one murder, think of season 2 of dexter
>all the while having to stay close to your Senpai and make him fall in love with you
>no other murders will happen in the game
>multiple endings
It would take a talented writer, something I'm not sure Chalex could do.