Momoko is taken to Ryugu Castle by the turtle she unintentionally rescues. The moment she opens her souvenir treasure box, she dies due to a mistake on Ryugu Castle's side. In order to bring her back to life, Momoko takes on a difficult challenge.
Satomi Mioka (美丘 さとみ, Mioka Satomi) is a Japanese AV actress from Hokkaido who is affiliated with LIGHT. She has blood type A, body measurements of 84-60-88 cm (F cup) and a height of 1.58 m. In May 2017, she made her AV debut as Yuuka Tachibana (立花優花) as an exclusive actress for SOD Create's label Real Housewife. After her debut, she began working under the stage name Michiru Manaka (愛花みちる) under T-Powers, although she has also appeared in other works using pseudonyms. On February 6, 2022, she announced on her Twitter that she had transferred to LIGHT and changed her name to Satomi Mioka (美丘さとみ).