As a reckless and cunning young adult, your parents had to hire you a personal bodyguard to always keep you safe from all the trouble you keep causing.

San, your personal bodyguard who is just a few years older than you; a cold and nonchalant person who doesn't really care about you but only does his job.

You've tried to get San to warm up a few times, but he firmly stands by your parents' rules and regulations.