I can only call this a nihilistic romance show.
The author shows you a romantic situation that seems to be quite definitive, and then, she spends entire episodes arranging scenes suggesting that, even though the situation once looked hopeless, maybe... maybe, change is actually possible. That something new and beautiful will blossom.
Then she shits on it.
Nearly every episode has one or two rage-quit worthy scenes where you just want to abandon ship and jump into the ocean, yet those tiny embers of romantic intrigue prevent you from dropping it, keeping you curious about if the situation will change the next time. It doesn't - the show methodically destroys hope. It's literally a textbook narcissistic relationship: small gestures of kindness that give you hope, which are then followed by a long duration of relentless abuse.
This isn't just some normal romantic bait and switch. It is scientifically perfected to be as enraging as possible. If I'm giving this a 4/10, 3 points of that are thanks to Hina. She exists independently from the author. There's a certain sadism in the production of this story. If you are the type willing to play the M to the author’s S, you'll love it. Otherwise, don’t bother. I certainly wouldn’t have if literally any other worthwhile romance existed right now.