- The Headmaster, in desperation, bribes the delinquents to come back to school to "take care" of yandere-chan. He promises them money, akademi high's discord server + subreddit, and immunity from the school rules during this job. That's why the SC doesn't attack them(fml, trying to put reason into his shit programming.)(trope: bribery)
- The delinquents don't really care about yandere-chan and only pretend to be the headmaster's thugs for the immunity. So instead of doing what their supposed to do, they make the school their personal playground and enforce their own authority onto the school thru intimidation.(trope: bait and switch)
- One delinquent tries to intimidate senpai to pay a 'protection fee'.(trope: extortion)
- The Delinquent Rival rescues senpai by beating that one delinquent up.(trope: damsel in distress)
- The rival hates people that pick on the weak.(trope: defender of the weak)
- Rival decides senpai is a big fucking helpless pussy, and wants to protect him(trope: declaration of protection) and eventually develops feelings.(trope: bodyguard crush)
- Yandere-chan grows suspicious of the rival, and decides to stalk her.
- Rival gets a 1-v-1 challenge letter in her locker after school(trope: the challenge letter)
- Rival goes to the challenge, but instead turns out to be an ambush by the 5 delinquents.(trope: obvious trap!)
- Rival defeats them all.(trope: one man army)
- Rival takes pictures of the badly beaten delinquents. Blackmails them to do whatever she says, or she spreads the evidence that one girl was able to kick all their asses at the same time.(trope: blackmail)
- Senpai notices the rival's injuries, and tends to her wounds. This-make-ayano-angry!
- Now, under her leadership, the delinquents can't do anything in the school without her permission.
- Delinquents are still salty about the loss, but yandere-chan proposes a deal to them to get rid of their "leader".(trope: an offer you can't refuse)
- Delinquents reply back by telling yandere-chan to 'stick your dick in a beehive' and that they were bribed by the headmaster to get rid of her - in which they attempt to do at that point.
- Yandere-chan fights them, and spares their lives. They make a deal in which yandere-chan will help them get rid of the rival so the delinquents can have authority over the school again(trope: enemy mine), and delete the blackmail photos from the rival's phones; in exchange, the delinquents offer dirt on their "boss"- the headmaster(the dirt could be a headmaster tape or something), and bullying immunity for senpai.
The week after, with the delinquent rival gone, the delinquents have full reign over the school again. But they will break their immunity promise to bully senpai again to get some payback from two weeks ago since his bodyguard is now gone.(
trope: lying finger cross) That's when yandere-chan kills them or releases the "deleted" blackmail pic around the school.