What was supposed to be a fun visit to the karaoke studio suddenly turns into an emergency when the four friends are abducted by a shadowy organization.
Rikka is my precious friend!
Rikka ist meine Freundin!
¡Rikka es una buena amiga!
¡Rikka es una buena amiga!
Rikka est une amie précieuse pour moi !
On ne trahit pas ses amies !
Rikka è una mia preziosa amica!
A Rikka é minha amiga querida!
Рикка — моя драгоценная подруга!