Itsoumi:
STANDING ON BIDNESS!

He’s one of the top-tier shoujo male leads. He left NO ROOM for doubt. Came with a plan. The parents love him, and he’s financially stable too? Let's go!

A thoughtful, patient prince! He’s so loving and caring. 

The parents (the dad) bring up an issue we don't often see in the media. Like, any parents they wanted to find out his intentions and prevent their child from getting hurt.

The dad was worried Itsoumi wouldn't be interested in Yuki long-term. Their son's ex-girl couldn't see a future with him because she was concerned about her future children inheriting deafness.

 

Also, Itsuomi’s straightforwardness, influenced by his international upbringing, adds such a humourous contrast to the other characters. 

I'm not invested in Emma and her rebound Shin, but their scenes together are drawn beautifully.