A boy who thinks Akuto Sai is amazing and always bugs him by pretending to be brothers and calling Sai "Demon King". He often states that he is Sai's most loyal follower. Soon it shows that he is the reincarnation of a Hero, who later recovers his powers, becoming a monster-slayer superhero called Brave.
Maria is the supervising teacher of the Neighbors Club; she is a ten-year old nun. While not unintelligent, she is often rude and immature and refers to others as "Rotten mandarin." She develops a sibling-like relationship with Kodaka who regularly makes her packed lunches, and is affectionate with him. She is also gullible, which Yozora uses to her advantage. It was later on revealed that she was never a teacher nor a nun at the school, which almost causes the club's disbandment if it weren't for Sena's intervention, who called up her father to appoint her as a special part-time teacher. (Source: Wikipedia, edited)
Nico's best friend. She is an elegant and popular girl.
Yahiko is a samurai descendant. Yahiko's father died during the Battle of Ueno during the Boshin War, slain at the Keneiji Temple. His mother died of syphilis in a brothel to put food on their table not long after giving birth to her son. Yahiko was originally forced to live as a thief for the local Yakuza, who tricked him into believing that he still had to pay off the money the gangsters gave to his mother to buy medicine. With the help of Himura Kenshin and Kamiya Kaoru, he becomes an apprentice of the Kamiya Kasshin-Ryuu style. Yahiko has a friend/rival, Tsukayama Yutarou and a sweetheart, Sanjou Tsubame, who works at Akabeko.
Tina is a television reporter who only appears in the anime series. She hosts the program that's at the end of each episode titled: "Gourmet News." While seemingly cheerful and humble on camera, she is actually an extremely determined, intelligent, and strict person who will do anything for a big story (especially ones involving Toriko), however like the rest of the folk born in the Gourmet Age, she has a great love of food and will sometimes lose her composure when in the presence of amazing dishes. She also made a small cameo appearance in chapter 145 of the manga. (Source: Toriko Wikia)