Magical tools masters normally can't use magical tools, but Roji realizes that Rio used one to protect Bico. Meanwhile, Muhyo has collapsed after exhausting his ren, leaving him in a dangerous condition of mental numbness... the exact moment Rio has been waiting for.
This is how a traitor fights.
هكذا يقاتل الخائن
so kämpft ein Verräter eben!
así es como pelea un traidor.
que c’est ainsi
que combattent les traîtres !
È così che combattono i traditori.
É assim que um traidor luta.
Именно так предатель и ведёт сражение.