[Machine Translation] My sister's friend Tsuyu-chan is basically a quiet and expressionless girl. She is always happy when she is with Hidaka Yuuto and her sister Chie, although she doesn't know what they are thinking. She seems especially happy when she is alone with Yuuto. The long-awaited first volume of this much-awaited work, which ranked 10th in the Web manga category in the "Next Coming Manga Award 2020"!