Acting/Cast
So yeah the only main reason why I watched this is, because of Hinako Sakurai. I loved the role she played in Marmalade Boy Live Action and coinsidentally, the male lead of that movie is called Yuu. But back to this movie...
I've seen Sho Hirano in Honey live action.

Story/Overall
So since I've only watched about 50min. of this movie, I don't know how it ends. But I'm guessing it will have a happy ending, since it's based on a shoujo manga.
Yuu (Hinako Sakurai) I find so annoiying and clueless. She lets Rin (Sho Hirano) tell her that she's trash and let him bully her cause she thinks he's helping her or something. Also she does like him and he likes her, but let me tell you...There's a HUGE difference between "teasing" & "bullying". And he is definitely bullying her.
Overall the first 50min. That I have watched were definitely very cringey. And if "cringey" were a movie genre, I would put it under that category instead of comedy.
It was really cringey when it showed memories of them as children and they just took the older actor and actress and made there heads big.
His fantasies are kinda entertaining though.

I would not recommend this movie unless you have NOTHING else to do.