| Name | Kaidoh Kaoru |
|---|---|
| Year | 2 |
| Height (cm) | 173 |
| Blood Type | B |
| Birthday | May 11th |
| Constellation | |
| Hand | Right |
| Cloth | |
| Shoes | Puma |
| Racket | Head (TiS7) |
| Special Skill | Boomrang Snake |
| Quotes | zzzzzzzz…… |
| Favorite Subject | English |
| Favorite Color | Blue |
| Hobby | Marathon, gathering bandanas |
| Description | Kaidoh is nicknamed "the sniper" by his fellow teammates since he is always really serious and is easily irritable. Kaidoh's famous move is the "boomrang snake" which makes the tennis ball go around the pole and back into the court. Kaidoh trains extremely hard, most of the time under Inui's instructions in order to improve his tennis skills. (additional note: he lost to Echizen in the first Seigaku regular selection matches, but he was able to save his regular's position after defeating Inui) |
- Kaidou Kaoru (海堂 薫 Kaidō Kaoru) is known as "Viper" to his teammates, is known for constantly making a "fshuuuu", sound, similar to a snake, while exhaling. Kaidoh trains rigorously, increasing the training program given to him by Inui to give him unbeatable endurance. He has a deep rivalry with Momoshiro, in which they constantly try to one-up each other. He normally plays singles, though he eventually pairs with Inui, who help Kaidoh train at first. Kaidoh's stamina is used to let him play the other team alone, while Inui collects data. After the national tournament, Kaidoh becomes the new captain of Seigaku.
- He wears a bandana while playing tennis (in the anime, it is orange until episode 12 when it changes to green almost permentanly--only in a few, recreational episodes does it change color). Kaidoh does not like when his nickname isn't taken seriously, and often reacts badly when called that within earshot by someone he doesn't like, especially if the person uttering the nickname is Takeshi Momoshiro or Akira Kamio (he once even comes to try hitting Kamio during the Fudomine matches, placing Tezuka in a rather uncomfortable situation.) Kaidoh's play style involves wearing his opponent's down by hitting shots that make them run back and forth, and taking advantage of his own powerful stamina. His trademark shot is the Snake Shot, a modified version of the Buggy Whip Shot. Over the course of the series, Kaidoh develops several more significant variations of the shot, such as the Boomerang Snake, which is hit around the pole, the Short Snake, which he can use against a net player, and the Reverse Snake, which can be hit in the opposite direction. During the Nationals, he unveils his most powerful version, the Tornado Snake, which takes advantage of gyro spin. After learning the Laser Beam shot used by Hiroshi Yagyuu, he practices hitting it with the same motion and using gyro spin to keep the opponent from knowing which shot is coming. He has also shown the ability to hit the Jack Knife shot Momoshiro uses, and enter the Devil Mode used by Akaya Kirihara. In the anime, Kaidoh has another shot known as the Hadokyuu Boomerang, which uses the powerful Hadokyuu shot in combination with his Boomerang Snake.
- Kaidoh and Inui also make an excellent doubles pair, mostly after beating Inui himself during the same line-up matches where Ryoma Echizen became a regular. Inui has seen Kaidoh's potential and kind side and has taken him under his wing. In the fandom, they are often known as the "Emerald Pair." This is presumably a pun based on the name of Seigaku's "Golden Pair" (Eiji Kikumaru and Shuichiro Oishi) and the several green items associated with the Emerald Pair, such as Kaidoh's bandana, Inui's notebook, Inui's special juices and pants he used when being the "training coach" of Seigaku after losing his regular place to Echizen.
- Kaidoh lives with his mother Hozumi (40), father Shibuki (37), and younger brother Hazue (11). His father and younger brother are so similar in looks to him that they are practically just older and younger versions of Kaidoh, respectively. His mother is a sweet, calm, always smiling woman who looks younger than she really is and is famous for her excellent home-made meals. Kaidoh's school lunches are usually prepared by her, and to honor Hozumi's good cooking and dedication Kaidoh eats his home-made lunch in a highly ritualistic and solemn manner that weirds out his schoolmates. Hozumi is among the very few adults (aside from the coaches, that is) featured in the Prince of Tennis video games, too; the "Rush and Dream 2" one has her eavesdropping on Kaidoh and the main girl, Tomoe, as they prepare noodles.
- In Genius 379, the last chapter of the manga, Kaidoh is seen as a third year and the new captain of Seigaku, with Momoshiro as his sub-captain. Their rivalry has, apparently, somewhat mellowed with time.[1]
