Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.
Sosuke,, Sosuke, who lives in the school in a rural town, enjoyed a fun otaku life with his sister-in-law, Nanuru, who lived with him, and his childhood friend, Maho, in the otaku club of the school because of his father's remarriage.
However, one day, a month away from summer vacation, her real sister, Suzu, who lived with her until her childhood, was taken in by her mother and returned!
At the school, at home, outside, and quietly brandishing her real sister power.
And just the awkward sister-in-law.
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