Kaho Isehara loves the ears of her strict boss, Akinori Tojo, who is feared as "Demon Tojo". One day, she accidentally got drunk and said to him: "Just one time... (I want to bite your ear)." The wish that she thought would never come true has become a reality!? The demon boss's ear is too erotic and cute, and she can't stop to lust it... But when she wakes up, she finds out that they are dating!? "For some reason, I'm supposed to be in a serious relationship with him!? A sweet office love between a naive demon boss and a fetish subordinate!