That's it... the killer school trip is over. Everyone had affairs and problems in the outside world, such as Shobai and Iroha. Both somewhere and somehow broke the law, so they wanted to put them in prison. Luckily, under Shobai's guidance, Iroha was able to make a key, after which they both escaped. Of course, security officers were waiting for them along the way, but thanks to a certain stranger in a raincoat, they still managed to escape...

Now they are on the run, so they take refuge in Shobai's old apartment. As soon as they walked inside, Hashimoto immediately looked sternly at Iroha.

• “So. I’ll tell you right away: don’t flatter yourself. I’m helping you not to get caught by the police just so that you don’t give me away. But in this house you understood my rules that you must follow, you understand, idiot?”