yui hanuka (voiced by shinho shinho) is a 17-year-old high school student. in order to deal with the upcoming entrance examination, she moved from her hometown to tokyo to join her sister who lives here. bbb。 although yui looks a little dumb on weekdays, she is actually a very optimistic and hardworking girl. momohara natsuki (voiced by rie murakawa) looks petite and cute, but unexpectedly good at cooking housework. he is busy with his brother's life every day. qingdao mengxiang (voiced by mimori suzuko) has always hoped to become a singer, but after she really embarked on this path, she realized that the journey was full of twists and difficulties. although she is very competitive on the surface, mengxiang actually has a very gentle side. with these three adorable girls, summer begins.