[Kuromahou Kenkyuujo (Nukaji)] Using A Retarded Little Girl As A Cocksleeve

Summer vacation curdles into obsession when Kaiji, benched inside while classmates play dodgeball, fixes his attention on Chishio—the dreamy girl chasing butterflies along the windowsill who never pulls away from him. A slow crawl across an empty classroom gives way to feverish discovery, his every sensation a first as her trembling body answers back, until the two end up entangled under a spray of hot water where he learns exactly which spot makes her voice change. A closing sketch page reveals the rough character drafts where the pair were first born.