Shiroko Uehara lives independently though she is just a student.
Her daily life is uneventful but peaceful, together with her friend Saki Sonoda.

But suddenly, sequential violence incidents start happening in her town.
Since she is living alone, it makes her worry about incoming threat.

On one day of such disquieting days, a girl rushes into Shiroko's house.

Her name is Chitose. She says that she has been running around
because she was assaulted by somebody.

Since that day Shiroko lives together with Chitose, who tries to have H with Shiroko.

A man whose face is hidden by a hoodie keeps his eyes on them...

[From DLsite English]