A cheerful, caring girl who befriended young Mai Toyama when Mai traveled to Romania with her painter mother. They became best friends, with Liliana joining to form a tight-knit trio.

Later, Rottie visited Japan with her family—but she went missing soon after. Her case was treated as a possible crime, but after seven years with no leads, her trail went cold. Sayaka will end up investigating her disappearance. After reuniting with Mai and Sayaka, Rottie begins a new life—

But how will she handle the chaos that follows?