We've gotten some cool scenes with Atsushi but I would have preferred if he had stayed dead back in the snowy fields while holding back Miyabi rather then coming back so soon, only to "die" right again.
Alternatively, maybe there should have been a longer gap between his first "death" and re-appearance.
I remember when Higanjima was about a group of incredibly weak friends barely able to kill one vampire on the mainland. Now it's just Akira and sometimes his weak friends.