Birthday: December 25 Age: 8 (Beginning) 16 (Current) Ren is a hardworking, honest, straightforward and trustworthy child. He has an affinity for dogs and a strange obsession with rice. He is currently living with Haru and his brothers, twins Aki and Shima. Although he is in their care, Ren is very mature for his age and hates being treated like a child, especially by Haru. He loves Haru but would rather put that man's wishes above his own. With an intelligence and perception above average for his age, he prefers to keep to himself and doesn't like to burden others with his insecurities. Due to a complicated childhood and no memory of his biological parents, he is quite naive about the world but is gradually adapting to his new life in Japan.
Kaidou Shima is one of Haru's brothers, who is currently studying in college and working as a part-time tutor. He is composed and cool character. Also has a twin brother named Aki.
She is a high school student of Central High School. Her real name is unknown. She is overly conscious with the proximity of high school boys to her and often thinks too hard of what to do to escape the situation. In the train though, she decides to tease boys who happen to stand or seat near her by moving away. The main trio each had a chance encounter with her; all of them subsequently making her feel more conscious about herself. She is an acquaintance of Yassan.
Age: 16 Birthday: March 15 Blood type: A Height: 159 cm BWH: 76-58-80 Hobby: Calligraphy, Kyudo, Kendo, Koto, Nagauta, Traditional dancing. Favorite food: Honoka's home Manjuu. Dislike food: carbonated drinks Personality: Umi is normally a shy girl, but she has a strong will and has some qualities of a leader. Despite this, she is content to stay reserved and always thinks logically. Umi became the group's main lyricist, and wrote the song "START:DASH!!," along with most of the rest of their songs. Umi is uncomfortable with wearing short skirts, but gets used to it after their first live. Apparently, if awakened while sleeping, Umi takes on a completely different and angry personality. (Source: Love Live! School Idol Project Wikia)
Son of a Yakuza family. He's intelligent but not an adept fighter. He likes sweet things, wants to marry a Yamato Nadeshiko and says he's the kind of person who has to do it absolutely correctly when he puts his mind into something otherwise he can't be satisfied. Raku once got amnesia. He tried to save Chitoge from a wild ball that unintentionally aimed for her head. Unfortunately, it hit his head mercilessly. He was unconscious and then woke up a second later. He did not recognize anyone, even though all of his friend were beside him. He became a really sincere person. He charmed everyone who talked to him—even Chitoge, Tsugumi, Tachibana, and of course Onodera. During his amnesia period, he stayed at Chitoge's mansion. After some quarrel with Chitoge, it seemed like he hinted about the one who holds a key. It was also unclear though because he immediately regained his memory. The hint regarding the girl who holds the key to his locket is "the girl's eyes were either brown or black but not blue." In the end, Raku realises that he has feelings for Chitoge, rather than Onodera. While Onodera confesses to him, and turns out to be the girl of the promise, he rejects her confession. He tells Chitoge that he loves her, and she confirms that their feelings are both mutual.
Otto Lilienthal, also known as the "Glider King", appears in the first episode where he snatches Yomiko's book while she is in the Library of Congress. The Library team chases him to New York City, where Yomiko builds a giant paper airplane to engage Lilienthal in aerial combat. Yomiko and Nancy defeat him by attaching a paper grappling hook to his glider, which then crashes into the Statue of Liberty.