Hello. In spite of your designation as "side characters", I'm using Student A as the protagonist of The Tragedy of Eiko. Be warned, it also contains Aiko doing Yandere things, which I find Yandere enough to apply the 18+ rating. I've also attempted to summarize your rules into something, that vaguely ressembles a license. Would you like to give COPYING.noraneko a read and tell me, whether it reflects your intentions?
I'm both absolutely fine with the side characters being used as main characters as well and with yandere characters! I have a rather soft spot for yandere.
I gave COPYING.noraneko a read and it does get across my intentions well, thank you!
I will be trying to play it soon as well, thank you for commenting to let me know!