Toshi was such a fucking dick, see netorare isn't great, but when it actually has some story like this its not bad. Toshi treated her like shit and when someone who Actually cared for her came he got jealous and ratted the teacher out. That's the kind of loser and personality that is absolutely garbage. he treats his friend like less than human and needed to protect and is completely creepy and obsessed. "If I can't be with her than neither can you" mentality. Not saying the grooming was any better but the guy actually cared enough to treat her kindly. Still the teacher is a little messed up.