The Summer Hikaru Died, Vol. 1 is a chilling yet deeply emotional manga that explores themes of friendship, identity, and the supernatural. The story follows Yoshiki and Hikaru, two childhood friends who have always been inseparable. However, one summer, something unthinkable happens—Hikaru disappears, only to return as something… different.

Though he looks, speaks, and acts like Hikaru, Yoshiki senses that something is off. As eerie and unsettling events unfold, he must confront the terrifying truth about what his best friend has become. Caught between his deep attachment to Hikaru and the horrifying realization that he may no longer be human, Yoshiki struggles with fear, grief, and unbreakable loyalty.

With hauntingly beautiful artwork and a slow-building sense of dread, The Summer Hikaru Died blends psychological horror with an intimate character-driven narrative, creating a gripping and emotional supernatural drama. A must-read for fans of horror, mystery, and thought-provoking storytelling, this volume leaves readers questioning the fine line between love and fear, and what it truly means to hold onto someone you’ve already lost.