The reviews here with 6 points explain it good. But i want to add somethings:
Story 4/10
it's not something new, not refreshing, it same old story, added couple of western ideas with the animation at the beginning it's made me a little frastrated, i felt i watched 90's "indie" american movie.
But the end was the punchline- it is an happy ending for gay couple. So you forgive them for the boring plot.

Acting 3/10

I loved Jdrama until 1-2 years ago, but they started to pick bad actors, or actors that doesn't fit to their roles.
They are not strick like before in choosing the cast and it's Because western factors involved - like Netflix or Vikii and their friends for example.

I really can't understand why the cast Shirasu Jin, i don't like him at all, he should play the villain, something about him looks as bad person, his smile, his eyes. I feel only the cold blowing even when he said: "I love you Yuki"

Raiko on the other hand is better but still lack of skills, when he is craying you don't but it!

they are both not fit for the role and doesn't deliveres the feelings they could hace ( watch His, ir pornographer - and compare to the level of acting and production)

Music 1/10

They really didn't invested at all in the OST

Overall production 6/10

It's cute because there are moments you can feel the ecxitment, Mostly because the "old" jdrama vibe they used to be. but it was rashed fast and we could not feel the emotion properly, so i gave it a 6, it is worth watching anyway.