Breasts Are My Favorite Things in the World!, Vol. 1 — Wakame Konbu

Chiaki Ichihara is the princely heartthrob all the girls crush on, but she's
got a not-so-charming secret: a serious boob fetish! Chiaki is so obsessed with breasts, she can hardly function without copping a feel. To satiate this need (and keep her classmates from finding out), she has enlisted Hana Harumi, whose perfectly sized and shaped bust may just be everything Chiaki's ever wanted…Will their odd partnership bloom into a bosom bond like no other?