I wish that we got more of yuu like his aspirations/goals for the future
Thing is, Yuu has NONE right now, as he's focused on the well-being of the sisters, which is why I believe that this current arc is needed, as he will have to face his past full ahead soon... BUT, at the same time, this current arc, IMO, needed to happen right after the dinner with the sisters and Mr. Mikadono, when Yuu was told if he was OK with seeing the sisters accomplish their goals while he was still at a stalemate, instead of the "Yuu's Gift" and "Good Partner" Arc
Those arcs were enjoyable, but because Yuu barely had any character development in them, they frankly felt... Kind of filler, as they were 2 entire arcs dedicated to more character development of the sisters, when Yuu was the one who needed it the most.
So, in short, IMO, the story structure could've worked much better like:
Dinner arc >>> Yuu deals with his past (Current arc) >>> Yuu becomes aware of both the sisters' and his own feelings >>> Gift / Good Partner arcs (Which would've had a bigger impact now with everyone's feelings on the table.)
It's not like I'm not enjoying the manga, but yeah, Yuu needed more character development, like, many chapters ago.
He needs to be much more than just "The sisters' caretaker", which, again, I hope is what this current arc is trying to accomplish.