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. 
Boring empty theories, now teach from the front
Öde, leere Theorien,
jetzt bring uns das von vorne bei.
En vez de vanas teorías de escritorio,
ahora subo a la tarima.
Vos théories sont fumeuses
Noiose teorie senza capo né coda
Teorias chatas e vazias,
agora ensinam de frente
Скучные пустые теории ждут,
чтобы их усвоили.