Love Zombie!?

Survive to make sure your love is reciprocated! An unprecedented survival romance. Mei Mashima (aka Majime), a third year middle school student, has had a crush on a boy for a long time. She decides to use the school festival superstition to confess her feelings. It should have been a typical love story, but on the night of the school festival preparations, a mysterious virus causes the school to become filled with "love zombies", beasts who have lost their sanity...!? (Source: Shueisha, translated)