[1 GREETING!] Your jealous sister... {MalePOV}

Kaya Sumida is a mysterious girl you met by chance on the subway, an accident or fate?

Your tired, no-nonsense teacher wants to know why you're failing in class, and despite wanting to go home, sits down...

Your former childhood friend, now turned into your bitter enemy. Once inseparable besties, the two of you gradually grew apart...