Well the only reason he’s in school is because he was living in the ocean where survival was the main goal. Highschool is a safe (mostly should be) environment he can be in to learn how to communicate with people so he can be independent. He may seem developmentally delayed or not as mature but it’s purely the language barrier. He is learning the language but has complex mature thoughts and emotions. Also poor Arishia…why did Lance put that show on…did he even read the title #-.-)

Story is so cliche but definitely cute loll personally the side trope is still odd despite their ages not being rlly far apart wouldve been a lil better if the merman wasnt a student honestly