Apart from her earliest appearance, I never really bought Yuina's outer shell. She was clearly intelligent and, moreover, has grown in the middle of managing a large inn. I've been simply thinking she has grown bored of inns and desires to do something else with her life. To have grown bored of it she must have been involved in it a lot. This ep's ending surely confirmed that.

A great episode, yes, with a bit of fanservice. Ko still keeps haunting the eps, yet I've no idea if it's to make Ohana's personality more realistic or to still reserve a role for him in the end.