The co op feature is ruined because it has to be local not like it used to be when you could join with anyone from around the world. You should re input that feature so the game can be more fun. I greatly encourage this so people that want to solo impossible quests can do that if they wants to. You should be able to solo the izanami quest. I still do like the game though but in putting this feature back would greatly improve it.
Dragonslayer545 about Monster Strike