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im trying to find this chinese manga/manhwa. its shounen ai and the beginning of the story starts out with one of the main characters in the principles office changing his and his friends grades but then the principle comes back and the guy hides in a box on the floor. But the other main was in the room the whole time and hes the good kid but he didnt tell the principle he was in there. So the good kid suggests to the principle that the bad kid does i think a year of service at the school with him. and the bad kid has 2 best friends. one has yellow hair but i dont really remember the other one.