Confessing to being the spy within Fukurou, Akira leaves after pledging to Tsugumi that he will protect her. Rattled by the revelation of his betrayal, the other members are unable to hide their upset. After leaving Fukurou, Akira heads straight for Shiginuma to angrily confront him for his threats to Tsugumi. Meanwhile, Tsugumi learns some surprising new information about cursed tomes from Nabari.
There's nothing to apologize for. 
Don't worry about it.
.لا شيء تعتذري بشأنه، لا تقلقي
Descuida,
no hace falta que te disculpes.
Descuida,
no hace falta que te disculpes.
Tu n’as pas à t’excuser,
ne t’en fais pas.
Non devi scusarti di niente, 
non ti preoccupare.
Não precisa se desculpar, não se preocupe.
Не за что извиняться. Не бери в голову.