The manga centers on Hina and her classmate Gen, whose parents' marriage makes them stepsiblings.

Gen, an active manga artist, behaves coldly toward Hina and his new family, choosing to not have anything to do with them. Hina, on the other hand, wants to connect with Gen.

(Source: ANN)

Included one-shot: Volume 2: Naisho no Yuusha-kun