A secretive school romantic comedy in which each seemingly perfect twin girl has a hidden side, and only the protagonist ends up sharing those secrets. It collides tomboyishness, perversity, and ordinariness into a noisy relationship among the twins and the boy.

The moment an ordinary boy learns the perfect twins' secrets, his everyday life turns loud and complicated.

An isekai fantasy in which high school student Renji is transported to another world on his way home from the entrance ceremony and meets Alti, a girl of the witch race, while fleeing a black mist monster. The death curse marked on both their hands binds domestic companionship and resistance against fate into one story.

Rather than wait for the day of ending, the boy takes up a sword and steps toward the future.

A battle story centered on mechanical girls that reached the final selection. Judges noted that the rival and his mechanical-girl servant received more substantial treatment than the protagonist side, and that the work needed expansion as a full-length novel.

An unpublished finalist remembered for the strong impression left by its mechanical-girl master-servant relationship.

A school romantic comedy in which ordinary Ranmaru becomes entangled with a top student and then gains Lidi, a genius girl from Russia, as his stepsister. Lidi's extreme attachment and rivalry between talented girls turn his daily life noisy.

The original romance-manual title became the genius-stepsister romantic comedy Sis x Tora in publication.