I really don’t get where the high ratings come from!

The story started promising sport/school drama, you get neither of those!
Until episode 12 there is no actual sports excitement other than seeing the ML flip in the pool and a few girls stretching with ribbons! The gold and silver medals are simply mentioned, nothing was built around them. I doubt it’s getting better later. The school is nonexistent other than the characters sleeping in a dormitory. Even the dormitory was underused to the point of boredom.
The romance was weird at best! The 3 couples share exactly the same story and development!!!!! One is loved by the other for a long period and never notices it until being told straight out and even then needs time to “realize” their feelings. All 3 couples have one who is clumsy, self-centered, totally unaware of its surroundings, and the other who is the greenest flag ever! Wait for it… all 3 couples are in an unrequited love triangle! Common!!!!
It was painful to watch the lack of facial expressions of almost all actors! The FL was acting like a 3 years old spoiled toddler.
The only enjoyable character to watch was the ML but he didn’t get much of a development. You see right from the start that he likes the FL and devotedly follows the same path.