Someone from YukanClub x OC A cute childhood friend of Bido's named Rika, is moving to their city for her father to expand his company. Rika, like many other girls around the world, is also in love with Bido. Then Bido's observant friend, Miroku, notices this and decides to help Rika out on her love issues. But what if Rika's feelings change during their match making plans?

A new student's arrived at Kurogin and has become friends with almost everyone in the class 3D. Now Hayato will meet his match.