Fall in Love, Deceived, and Then a Love Hotel?

The Idiots, jealous of the fact that Himeji has a boyfriend, have Himeji set up a mixer. On the day of the mixer, the guys are taken aback by Eriko and the others' high spirits and just smile politely. However, Ayano and the guy Shimotakaya, who are both interested in each other, enter their own world. With Eriko and the others dumbfounded, the two believe it's fate and start dating...