In a desolate countryside town where the horizon seems to close in on its inhabitants, high schooler Reiji Kurose has resigned himself to a life of quiet desperation. Burdened by a shut-in brother, a grandmother with dementia, and an overbearing mother, Reiji believes he is destined to never leave the town that stifles him. His only solace is the idol group "Acrylic," particularly its star member, Nagi Aoe. However, his reality shifts dramatically when he finds Nagi herself working at a local convenience store, leading to a meeting that will change his life forever.
What begins as a chance encounter quickly spirals into a dark and psychological "boy meets girl" story where the stakes are life and death. Nagi’s presence brings a glimmer of light that is soon overshadowed by a grim proposal: a double suicide. As Reiji becomes further entangled with Nagi, the hidden depravity and toxic web of relationships within his small town begin to surface, involving his childhood friend Chako, his obsessed teacher Ms. Shiba, and his manipulative childhood "friend" Gen.
Shounen no Abyss is a raw and unsettling look at the "abyss" found in modern society—the crushing weight of expectations, the cycle of trauma, and the nihilism that comes from feeling truly trapped. With its beautiful yet haunting art and a narrative that refuses to shy away from the darkest corners of the human psyche, this series is a standout for readers who appreciate complex, tragic storytelling in the vein of Goodnight Punpun or The Flowers of Evil.