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.
If you run into any trouble, 
don't hesitate to talk to me!
Aber wenn dich irgendwas bedrückt,
ist Rikka für dich da.
si tu as des problèmes,
n’hésite pas à m’en parler !
Se finisci nei guai, a me puoi dirlo! Va bene?
Se acontecer algum problema,
pode falar comigo, tá bom?
Если ты попадёшь в беду,
не стесняйся обратиться ко мне!