At a Valentine-themed baking party, Oshima-san and Shizuku discover that they're both making chocolates for the same guy, sparking a rivalry between the two.
General Note
Printed Manga-style; book opens from left to right. Pages are read from right to left.
Originally published: Tokyo : Kodansha Ltd., 2010.
Translation of: Tonari no Kaibutsu-kun.