Kirishima's Day Off - S1.E5

Kirishima accompanies Sakuragi to a meeting with other heads of yakuza families. On their way home, they run into Rei, who is Kirishima's classmate from middle school. Rei is much more feminine now and Kirishima doesn't know how to react... Meanwhile, Yaeka was trying to bake a cake with Kanami. Who could be the lucky person that Yaeka is making the cake for?