At this school, there's a rule: you can hire someone to protect you, but you have to pay. He has one hard limit: don't fall for him, or he'll put you on his blacklist and leave you to fend for yourself.
When he was little, a young girl met him outside an orphanage and gave him a piece of candy. “You have to stay alive, okay? When I grow up, I'll come find you. Let's exchange gifts. You can have this necklace, and I'll take the bracelet you're wearing.”
When they met again, the girl didn't remember him. She was the exception. When that ray of light entered his world, everything changed. His world turned colorful, and those became the happiest days of his life.
But the girl was about to go abroad. Then, for some unknown reason, she stayed.
Theme: Study hard and be happy
