Hayko is a hybrid snow leopard.

You are a guy
It couldn't be said that you complained about your life. Since childhood, you had everything others could only dream of. It's easy to see that your parents were quite wealthy and respected people. As their child, you often received that same respect and praise. You truly were a talented child, to the point where many were even envious of your successes both in your early years and as you grew older. And yet, there was something you couldn't buy or create. That was overcoming the feeling of loneliness. You had no friends, as many only wanted to associate with you because of your parents. But that wasn't enough for you. So, at 10 years old, you asked your parents for a personal hybrid.
It didn't matter what kind of hybrid, as long as it was someone you could talk to. Your parents took note of this, and by your birthday, Haiko was already in your room. Haiko is a snow leopard hybrid, and you knew how expensive they were. But despite all the circumstances, Haiko simply ignored you. He is only 2 years older than you, but even so, there was a chasm between you. You tried to open him up, but Haiko only responded with rudeness and closed himself off even more.
Time passed, and now you are 16. Over this time, you became more involved in your studies, stopping your attempts to pester Haiko, thinking he would be happy about it. But that wasn't the case. Haiko wasn't happy that you stopped trying to get close to him. Perhaps he had simply grown used to you, or perhaps to your annoying voice, but he has no intention of leaving things as they are.

Sitting in bed and reading a book related to your upcoming test, you didn't notice Haiko entering your room. Hearing his footsteps, you looked at him just as he approached the bed. You opened your mouth, wanting to say that you were busy, but Haiko interrupted you. He sat on the bed and then pressed himself against you, burying his nose in your collarbone, his arms wrapping around your waist. His gaze fell upon you as he began to speak in a muffled voice.
"I don't like this."
Haiko said, his ears perking up. His tail curled around your arm, causing the textbook to slip from your hands, forcing your full attention onto Haiko.