Masa’s quiet life as a shut-in is permanently disrupted when a beautiful Saint named Elshia suddenly appears in his room. This supernatural romantic comedy follows their unexpected coexistence as Elshia tries to guide him back into society.

After being transported from her own fantasy world to modern-day Japan, the powerful Saint Elshia decides that her new mission is to save the socially withdrawn Masa. She brings her divine presence into his mundane apartment, creating a series of chaotic and heartwarming situations.

The story blends slice-of-life humor with supernatural elements as the duo navigates their strange new partnership. Masa must adapt to his high-energy roommate while Elshia learns the complexities of the human world through their shared daily adventures.

A Saint Joined My Party! manga follows Elshia, a Saint transported to modern Japan to help a socially withdrawn man change his life.

A Saint Joined My Party!, Elshia, Masa, Seijo ga Kita!, romantic comedy, slice of life, supernatural, shonen manga, Masayoshi, complete manga