The sentient that is responsible for the body-swapping phenomenon, he normally takes over the body of Gotou Ryuuzen. He is not limited to possessing only Gotou, as he was able to possess Cultural club members without difficulty. He wishes to be entertained. He picks the Student Cultural Society club members of the Yamaboshi Private High School, just because he thought they are an interesting bunch. He has control over the Body-swapping phenomenon, capable of taking over anybody he wishes. He can start and end the body-swapping process; however he allows the body-swapping to randomly choose the candidates amongst the group as it will be more interesting. He is also capable of letting the candidates choose who they wish to body-swap with among themselves, but only when he desires it. (Source: Kokoro Connect Wikia)
Homeroom teacher of the Cultural Research Club members, and the advisor for the club itself. Also serves as a host for Heartseed, who occasionally takes control of Gotou's body to explain a phenomenon to the club. Afterwards, Gotou has no recollection of what happened at those times.
Taichi's elementary school age younger sister. She often gives advice to her brother about love. Like Ryuuzen and Iori, she is sometimes controlled by Heartseed, but the different one from Heartseed the cultural club's members known.
Age: 15 Birthday: January 30 Birthplace: Man-Home Height: 155 cm Blood type: A A native of Man-Home, Akari is a happy and easy-going person, who we rarely see angry or upset, a quality which she shares with her supervisor. She is best described as a romantic, and seems to find enjoyment in things or events that other people might think humdrum and mundane. Akari often says "Hohe" or "Hahi", which is her short version of "wow." While she is not quite as skilled in rowing as Alice, nor is as familiar with the history of the city as Aika, her carefree and laid-back manner often endears her to the many people she encounters. As such, she seems to make friends very easily, and can hold a warm conversation even with complete strangers, a fact that causes her to be labeled as 'mysterious' by her closest friends Aika and Alice. She also accidentally learned how to row backwards on the gondola back when she was at Man-Home, which Aika states, "Akari is almost invincible when she rows backwards" (from the anime and the manga). She is frequently writing letters about her adventures on Aqua to an unnamed person back on Man-home (revealed in the last chapter of the manga); in the anime, these letters are directed to Ai. Later, when Akari passed the test for Prima, she is given the title "Aquamarine" or "Harukanaru Ao" by Alicia meaning distant blue. (Source: Wikipedia)
Sol is one of a number of Zeon soldiers stationed at a remote base. When White Base nears the base, a fellow soldier, Cuaran comes up with a plan to destroy the Gundam by placing bombs on it. Sol takes part in Cuaran's team, who are successful in attaching a half dozen bombs on the Gundam, but watch as Amuro is able to remove all of them. They drive by in civilian clothes afterwards and wish him and the other White Base crew good luck.
Official pilot and instructor. He is 30 years old. (Source: Wikipedia)