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Feverish Atmosphere

微熱空間

When their parents marry, Naoya Akasegawa and Amane Nakanose suddenly become step-siblings. Amane, a student at the prestigious Kasugano Girls' School, had been delighted at the idea of gaining a little brother, while Naoya had hoped for a warm older sister. Neither of them gets what they expected: the two are almost the same age, only three days apart, and the girl who greets him is haughty, cold and insists on being addressed as "onee-chan."

Naoya tries to get along with the sister he never asked for, enduring her neglect while he settles into a new household and a new family. Underneath her proud manner, though, he keeps catching glimpses of someone gentler, and that small hope is enough to make him keep trying. Day by day, the two step-siblings slowly learn how to share a home.

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