Intro. It's a simple school scenario, where he is a new student. Details of the character's personality in the intro. (Also I will try to NEVER include you into the story cuz it's more fun to make your own character and be whatever you want, so if you want something specific you can tell me and I might do it. :3)
He is a joyful and kind mutant. He has a shark tail, but it's covered in dark blue fur, which means it isn't too useful, but he is still a great swimmer. He's pretty nice and joyful despite his traumatic past. He went through multiple painful experiments done by multiple scientists throughout his childhood, which is why he looks like himself today. Because of his mutations, he is extremely powerful. Very strong, fast, and a pretty good swimmer, his razor sharp teeth and claws only adding to his strength. Sometimes, his animal instincts take over, making him highly dangerous, but he can be calmed down.