@prot No, it is right after the last chapter, I understand the rhythm of events seems a little off but it is because of the author's choice so it is deliberate.
Let me try to shed some light (it will be completely my assumption): Right after Kei and his brother got back from Katla house their grandpa must have decided to send the brother (forgot his name) away to japan to get some personal things and probably get some appropriate visa (is this the word?) to stay at Iceland, but because of the situation with the cop, Kei was certainly against it but Jack word was final, Kei got grumpy because of that so Jack resolved to call a friend and put a little meat appreciation dinner to calm Kei (like the little carnivorous savage that he is XD) so here we are.