Responses

Are we sure, I kept saying & thinking that as well, but given the words the brothers share here in Ch.4.5, when Hayato & Shirou elope, it seems like Takao hasn't met his mate yet, since his mate (I forgot his name) is also human and also in the end knows their wolf-secret.
Hayato eloping and Takao taking his place in the family as succesor bc of Shirou wouldn't make much sense when Takao has "the same" mate (human and all).
I think Vol.2 might after all be the prequel to Vol.1 and Vol.3 is a sequel to both 1 & 2.
I really hope that the sequel also gets translated...