Fujita Moka was a super otaku girl in middle school. After her crush told her that she "hates otaku," she decided to graduate from being an otaku and started the new semester of her first year of high school. But then, a boy appeared in front of her, dressed as Mary-chan, her favorite character from her favorite late-night anime, "Necromancer Mary"...?!?! The two share the same bias, but are complete opposites, and their happy, full-throttle youthful days begin.