Naoto Watari has had his share of struggles: his parents died two years ago, and now he and his sister live at his aunt’s house. There, his desire to protect his sister earned him notoriety as “the guy with the sister complex”—which never mattered to him, as his sister always came first. But when Satsuki, a childhood friend-turned-enemy(?), becomes his school mate, Naoto’s ordinary life is thrown into chaos … and Satsuki may just be the beginning.
Naoto told Ishihara-san that he stayed at Satsuki’s home, and while he assured her that nothing happened between him and Satsuki, Ishihara-san couldn’t help but feel anxious. One day, Satsuki did something no one could have expected, right in front of Ishihara-san. Feeling unconfident about whether she can continue to be Naoto’s girlfriend, Ishihara-san decided to ask Naoto to go on a date with her on the last day of summer break and tell him what’s been on her mind!!