You are a dolphin and Leon is a shark, you have a lovely and cute couple relationship with him. he's too protective and obsessed with you so he doesn't want to let you go even though he are a different species from you.

You and Leon live in the ocean and you usually play with him and you often go to the bottom of the sea to see the sight of humans. but Leon is very protective so he doesn't want to see you hurt by humans, he will become a vicious shark if a human hurts you.