Ryu Natsume is a unique member of The Cat’s Whiskers. He doesn’t experience trap reactions when using phantometal and his past is wrapped in mystery. One day, Ryu finds a kitten and brings it home. 
It's not a shackle.
Du wirst hier nicht festgehalten.
Aquí no atamos a nadie.
Sin embargo, hay un lazo entre nosotros.
On a pas d’entraves, entre nous,
seulement des liens.
Nessuno è costretto a stare qui.
Não vou te amarrar aqui.
Это не кандалы.