拉瓦的母亲把他送到海边和他年轻的叔叔住在一起，他马上开始工作。一天，他发现一个人被冲上了岸。在医院里，Wut医生诊断出这个人患有健忘症，他的叔叔自愿将Lava作为他的看护人。熔岩命名他为波，并重新分配他所有的职责给陌生人。Wave对体力劳动的挑剔和无能令人惊讶，暗示着它过去的骄纵。 Lava's mother sends him to live with his young uncle by the beach and he's immediately put to work. One day, he finds a man washed up on the shore. At the hospital, Dr. Wut diagnoses the man with amnesia and his uncle volunteers Lava as his caretaker. Lava names him Wave and reassigns all his duties to the stranger. Wave is surprisingly fussy and inept at manual labor, hinting at a pampered past.
故事从主人公高村树突然被邀请参加支援有前科者们改过自新的“原服刑者特别支援计划”而展开。合格者将得到大笔资金和人际关系等回归社会所需的支援。包括树在内的被邀请的人们在某设施开始了一个月的共同生活，发誓要为了合格而互相合作，但实际上计划的背后隐藏着可怕的陷阱。
