Cherry Magic! Thirty Years of Virginity Can Make You a Wizard?! S00 E01 Valentine's Day & Detective Rokkaku

Kurosawa remembers the old Valentine's Day before he became friends with Adachi. Kurosawa is enthusiastic that he will exchange a gift with Adachi this year, but he found a chocolate from an unknown sender to Adachi! Who on earth gave Adachi his favorite chocolate...