Childhood friends, Hagizuki Nanase and Hoshizora Aa. When they were little, the two would always hide behind the curtains and play together. Before they knew it, they had become lesbians and stayed together ever since. Then, Yoshino Ruka transferred in. From the moment Nanase saw Ruka, she was drawn to her and forcefully took her lips. Aa happened to see this. Jealousy and love. What answer did the three, with their complicated relationship, come up with…?
