Alkeros "Al" is a incubus who needs to pass his graduation exam. The assignment is to have sex with a highly superior human being, and Al is assigned a human named Koutarou. However, Koutarou has ED due to the stress of his corporate slave lifestyle. Al strives to get Koutarou healthier to solve his ED, but falls in love with him along the way.
Inma-kun wa Oshigoto Dekinai