ready. Despite this, and his attachment to Yuzuyu, Kippei understands that she needs her mother and insists on letting Yuzuyu leave with her mother. At the end of volume seven, about 10 years have passed. Yuzuyu appears to be a happy teen and Kokoro is still living with Kippei, presumably they have married (which now makes her Kokoro Katakura). The manga ends with Yuzuyu's letter to Kippei, thanking him for taking care of her when she was young. Yuzuyu ("Yuzu" for short) is a bubbly little 5-year-old girl. Having been abandoned by her mother, Yuzuyu begins to adapt to her new life with Kippei as her guardian. As the story progresses, Yuzuyu grows very attached to Kippei. When Yuzuyu meets Kokoro, she is scared Kokoro will take Kippei away from her. However, she eventually warms up to Kokoro and they become friends. Throughout the series, Yuzuyu struggles with the absence of her mother and is often seen crying herself to sleep. Yuzuyu tries her best in hopes that her mother will one day come back for her which conflicts with her wish to stay with Kippei. At the end of volume seven, Yuzuyu is a happy teenager who has reunited with her childhood friend, Shouta. She starts most of her sentences with "yuzu"-(ゆず). Kokoro is a pretty classmate of Kippei. Because she lost her mother at a young age, she has a quiet personality. Her father quickly remarried and left Kokoro to fend for herself in a luxurious apartment, believing that because she was quiet, she would prefer to live alone. This is not the case, however, and she feels extremely lonely living by herself with no one else to rely on. Kokoro initially despises Kippei for his promiscuous ways. However, after seeing how gentle he is and how much he cares for Yuzuyu, Kokoro begins to fall in love with him. Kokoro sympathizes with Yuzuyu and understands Kippei's responsibility for Yuzuyu. As such, she lets him get away with a lot of idiotic behavior. At the end of volume six, for a brief time, Kokoro believes she's pregnant, only to find out that it was a false alarm. However, she admits to Kippei that she had hoped she was pregnant, despite the problems that would arise, because it would mean that she would be able to spend more time with him. Soon after, Kokoro moves in with Kippei's family.