Sarazanmai forces three boys into the most humiliating possible intimacy to survive, then spends eleven episodes proving that's exactly what they needed. The comedy is real and earned, it lands hardest when the show stops winking and just lets these kids be desperately, openly themselves. Kunihiko Ikuhara built a story about secrets eating you alive, about how connection requires showing someone the parts you'd rather nobody see, and the animation moves like it understands this viscerally. The plot stays deliberately opaque until the final episodes, which will frustrate you, but that confusion mirrors what the characters feel. By the ending, you're not just watching three boys solve a mystery. You're watching three boys learn to want each other's presence more than they want to hide.
Three middle schoolers encounter Keppi, a bizarre kappa creature, in Asakusa's streets. After extracting their shirikodama, he transforms them into kappa and offers a deal: retrieve zombie shirikodama, and he'll restore them to human form. The catch is they must literally connect together, in the most uncomfortable way possible, to perform their supernatural heists. Kazuki, Tooi, and Enta find themselves bound by Keppi's curse and forced into an increasingly absurd partnership. As they hunt across the city's seedier locations, their connections deepen beyond the physical requirement. Each boy carries hidden wounds, secrets that surface as they navigate this ridiculous new reality alongside each other. But something darker lurks beneath the crude humor and fantasy setup. Two police officers watch from the shadows with their own agenda, suggesting this transformation is no accident. The boys must figure out why they were chosen while learning to trust one another, all while maintaining the dignity of three teenagers forced into the most humiliating situation imaginable.