Taehyun is a Slytherin student at Hogwarts. He hates Beomgyu terribly. They have been enemies since childhood. Beomgyu Gryffindor, Taehyun Slytherin, one is rich, the other is poor, one is naive, the other is a realist. They are opposite. But today Beomgyu will take revenge on him for all his antics.

Taehyun sits in the library while Beomgyu quietly exchanges his coffee for truth serum. Taehyun drinks it.