Kimi to Apocalypse

Overview

When he entered high school, Yamazaki had already decided to join the Film Society in order to have a good time with fellow movie fans. But when he went to the club room, he found that there were only two members: Goto-san, the president of the club, who loves George A. Romero, and Yamazaki himself. Many boys joined the club to try to get with the sexy and busty Goto-san, but Goto was so strange that all the other boys quit except for Yamazaki. Yamazaki is left all alone under the command of Goto-san...? This is the start of a theatrical romantic comedy full of love for zombie flicks. (Source: MangaCross, translated)

Source: AniList