KimiKiss: Pure Rouge

After several years abroad, Mao Mizusawa decides to return home to Japan following her stay in France. She is eager to reunite with her childhood friends Kouichi Sanada and Kazuki Aihara. Since her parents are staying overseas for the time being, Kouichi's mother has agreed to let Mao live with them, and Kouichi is stunned when he finds out. He has mixed feelings about it: he is glad to have the chance to spend more time with Mao, but he also worries about how they will adjust to this new situation under one roof.

After arriving, Mao settles into Kouichi's home, finds her place there and becomes part of the family's daily life. She decides to go back to school together with her friends, and they fully support her decision. School becomes the place where their new adventures and romantic entanglements begin. Mao meets all kinds of people, each of whom leaves a mark on her heart, and she faces difficult choices, setbacks and growing feelings. Together with Kouichi and Kazuki, she works through the obstacles and trials that arise along the path of their friendship and romance, as the three friends help one another through the ups and downs of high school love.