Ritsuka and Kaze-kun are currently lovey dovey, but Aizawa-sensei who is extremely beautiful and has the perfect body just started working. Is Kaze-kun also excited over sensei’s enormous breasts? With the appearance of a rival, Ritsuka is in a bind! I want to be my prettiest when I am in senpai’s field of vision... Hayashi, Ritsuka’s friend is the main character in the extra story. This is an extremely happy compilation volume to the Koigokoro series!! (Source: Chibi Manga)