My opinion...
Utsumi x Shou (first love)
........................................ = G.E good ending....nhaaa..just kidding...
Yuki x Thouro (first love)
However i'm glad to see the author make the character of Utsumi more mature..
I think in this arc,there are many chances to see Utsimi with Shou...
and to see Thouro...