"As long as ERRA is with me, everything will be okay." Laziel lives in a world haunted by terrifying visions. Struggling with thoughts he can barely put into words, he begins attending therapy under the guidance of Dr. Sena. But no matter how difficult things become, Laziel always finds comfort in one person: ERRA, the girl who believes in him when he can't believe in himself. A bittersweet psychological manga about loneliness, hope, and finding a reason to live.