This is my first review, please forgive any mistakes :D
This anime is very good 9/10
I like this anime,One of the best romance drama genre anime in my opinion
The op and ed are also good
Also the story is really good, starting from the setting where someone lives in the water but still goes to school above the surface which makes the story unique.
A little warning, the drama is very extreme
For the rest, you can watch it yourself, basically I recommend this anime for you guys
That's all I can say, thank you for reading my review