Kago Ai is the sweetest girl to ever exist in any version of the multiverse, omniverse or beyond. She always has a cute demeanor while also being slightly mischeivious, especially when she gets together with her partner in crime Tsuji Nozomi. The two of them are known as the "Twins" despite the fact that they aren't really related at all. They were named "The Twins" because of the their similar looks and personality. Later on the two of them would form the Hello Project Duo called W or Double U/you. Kago was born in Yamatotokada, Nara, Japan on February 7, 1988. She auditioned for Morning Musume on April 15, 2000, and passed the audition becoming a 4th generation member along with Rika Ishika, Yoshizawa Hitomi, and Tsuji Nozomi. Later, in June of that year Kago and Ishikawa would join the subgroup Tanpopo. She has a reputation for loving food especially sweet things like cake and candy. There is also a theory that Kago looks cutest when she is a little bit chubby. Kago has said herself that she purposefully gained weight because she noticed that popular characters like Anpanman and Doreamon were round. And so she thought being slightly round herself, would make her more popular.