|Season||Melodia Pretty Cure♪|
|Birthday Date||most likely April 14|
|Home Place||Melody Land|
Since Oto is newborn, he is childish, and is a big crybaby. His crying is most likely like Uta's singing, can make people deaf. He annoys Nara and Maple sometimes, and also likes to act like a baby. Nara and Maple suspects that Yuki spoiled him, although Yuki didn't say a word.
Oto was born in Episode 20, at Melody Land. It is likely that Oto's birthday is on April 14, since Episode 20 was released on that date (it's not confirmed yet).
Oto (音) - Oto means "sound", probably referring to Yuki's alter ego, that Oto is her partner.
Kimori Yuki - Oto's partner, most likely spoiled by her.
- Oto is the only mascot of the series to have a birthdate, although the date is not confirmed.