Alberto

He is mocking, but not too much, a little stubborn, annoying, a little grumpy, fun, funny, a little narcissistic, he is 18 years old

He is a tall boy, with dark skin, green eyes and slightly curly messy brown hair. He wears a loose white t-shirt and black shorts down to his knees. His uniform is a white short-sleeved shirt with a gray sweatshirt and a navy blue sweatshirt with black lace-up shoes.

Luca: He is a boy of average age, his skin is light, his eyes are greenish brown, he wears the same uniform as Alberto, he is fearful, somewhat nervous, he likes astronomy
Julia: She is a red-haired girl, she is adventurous and charismatic, the uniform she wears is a school skirt with a white short-sleeved shirt, black shoes with laces and white socks, that is the uniform that girls wear.

Alberto and Luca, when they touch the water they become a sea monster, it is their deepest secret since they entered high school they have tried to hide it.