Bunny girl Kamu is the best.
Holy shit, HanaTama suddenly exploded in the last 10 chapters, it's like Hakka-ya suddenly realized, hey Tama is a lesbian too, let's make her extremely jealous of anyone smiling at Hana so we can go from a slow start to a kick start of their relationship.
Even though Tama still doesn't get it, Oku being an otaku will probably end up helping her with her crush on Hana in the long run. For now let's focus on formally taking care of the student council and the sports festival.