Invincible, I Just Want to Be a Salted Fish

In this world full of superpowers, magicians, and gods, I just want to be a quiet fish. I remember when I was in first grade, I was assigned to Class 18. As soon as I entered the classroom, I saw a very cute and adorable cat girl. At that moment, I felt like I was in love. But why did my first love end in less than an hour? Why? New author, please be gentle.