Fuzuki Kouyama (神山 文月 Kōyama Fuzuki?) is the maternal grandmother of Mitsuki Koyama and mother of Hazuki Koyama.



Fuzuki was best friends with a wealthy young girl, Moe Rikyo, during her youth. Despite her illness, she was forced to take on much more responsibility, and was being forced into an arranged marriage with an ugly corporate man, referred to as "Kimiharu". One day, the girls ran into a handsome man playing a violin. Both girls were taken away by his talent, and later learned that he was actually Seijyuro Koga. Moe was the one, however, who had feelings for him. Fuzuki felt it was not worth fighting with a friend, so she accepted it with grace, and was happy for her. The three eventually became a strong trio of friends, when everything went wrong. Moe was told that Fuzuki was very ill, and that she could not see her anymore. She soon was being forced into a marriage with Fuzuki's former fiance Kimiharu. When Moe visits Fuzuki, she finds her kissing Seijyuro.

Despite the resulting conflicts, however, at the end of the manga, three years later, Fuzuki and Tanaka watch a much older (16-17+) Mitsuki singing her song at a concert. Fuzuki is embarrassed about Tanaka singing so loudly, asking her to please stop, while Fuzuki blushes in her embarrassment. Suddenly, Fuzuki hears, as she turns her head to the speaker in surprise:

"No need to fuss so much, Fuzuki-san. It's a place where we have fun, why don't we sit back and enjoy it?" "Right?"

Seijyuro is seen smiling in Fuzuki's direction as he asks. Fuzuki nods, smiling and with a light blush on her face, and responds, "Yes... Seijyuro-san."

The implication appears to be that the two ended on good terms despite all that happened in their pasts.

Physical appearanceEdit

Personality and traitsEdit




  • The anime hairstyle of Mitsuki's grandmother looks nothing like the manga version. In the manga, Fuzuki has long blond hair while in the anime, she has short dark brown hair.
  • Fuzuki's past is more detailed in the manga.
  • Fuzuki and Seijyuro at the end of the manga, in the epilogue, call each other's names using the Japanese honorfic "-san" attached at the end, implying politeness and respect. As they are seen smiling at each other, they appear to be (or end) on friendly terms.




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