Mika Horiuchi (堀内 美香, Horiuchi Mika, born August 17, 1996) is a Japanese nurse and porn actress from Osaka Prefecture who belongs to Krone. Her former stage name is Mikako Horiuchi (堀内 未果子, Horiuchi Mikako). Her body measurements are 95-58-90 (H cup) and her height is 1.63 m. When she was working as a nurse, she opened a Twitter account under the name Manji Onikonbu Manji-chan (卍鬼昆布卍ちゃん) and announced that she would appear in an AV (adult video) if she reached more than 10,000 followers. After reaching that number, she decided to make her AV debut and debuted in January 2021 under the stage name Mikako Horiuchi (堀内 未果子). After her debut, she has been working as a nurse once a week. Her stage name comes from her unrequited love's name Mikako Horiuchi. On April 4, 2022, she changed her stage name to Mika Horiuchi (堀内 美香). On July 19, 2024, since her fan club income exceeded her income as an AV actress, she announced that she would be leaving the regular AV industry and moving to the AV doujin industry, in which she shoots and edits herself. On the 28th of the same month she announced her retirement as an AV actress and her marriage.

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