Mitsukuni "Honey" Haninozuka is one of the main characters of Ouran High School Host Club. He is depicted as a childish and cake-loving boy who is much older than what his elementary school appearance would indicate. He is also a strong fighter who can send people flying with one kick. When Haruhi is warned about his legendary fighting skills, the point is illustrated in the anime by a mushroom cloud erupting where a city had once stood. In the anime, there is a scene which shows Honey's true strength and it is said that Japan's Defense Minister has told him not to show his full power for fear that other countries might think Japan holds a weapon of mass destruction, causing them to fire missiles upon Japan (episode 18 of the anime). Honey is often around his cousin Mori, to whom he is very close, and lives with his father, the owner of a famous dojo, and his little brother, Yasuchika, with whom he is often at odds.
Honey is very fond of eating sweets and his room is full of stuffed animals. He always carries around a plush bunny named Usa-chan, an abbreviation of usagi, which means rabbit (also called Bun-Bun in the manga). He used to hide his true self with much difficulty by acting like a "real man" for some time, but after Tamaki convinced him that liking cute things was not bad, he realized that there was absolutely no need to hide. Together with Mori, he joined the Host Club, attracting customers with his shotacon cuteness. It is possible his nickname, Honey, came from his first name, Mitsukuni (光邦?), as mitsu can mean honey (蜜?). It could also be an abbreviation of his family name, Haninozuka. He is referred to almost exclusively by this nickname, Mori being the only one who calls him by his first name.He is also known as Hunny in the manga.
In chapter 72, he graduates from Ouran, but says that he will return to the Host Club every so often, as will Mori. They often return for visits and for a picnic planned by Haruhi. He and Mori also help fetch Tamaki for the reunion plan. In his volume eighteen glimpse into the future, he is seen dating and marrying Reiko Kanazuki; Hatori also mentions that Honey is the first host club member to be married. Their marriage is confirmed in the August 2011 special chapter, set two years after Chapter 83; in the July 2011 chapter, it is confirmed that he is a third-year engineering student at Ouran University.
Honey, like Kyoya, has a difficult time waking up. Despite his cute nature, he wakes up in the same manner as Kyoya, though he is much quicker when dealing with the person that wakes him up, for example the platoon soldier when he visited America.