Although he works at an arcade, "Mobuo" remains inconspicuous among his co-workers, earning a nickname that implies his ability to seamlessly blend into his environment like an NPC. But, when the colorful and stunning Nanora Yaegashi visits the arcade seeking his help in mastering the most challenging games, his monotonous routine takes a thrilling turn. Unexpectedly, she even asks him out. From that moment on, they embark on a summer full of arcade escapades with a palpable sexual attraction simmering beneath the surface.
