Rebel in the Academy. Tournament of the Four Elements

I left my clan to live the life I chose for myself. But the past won't let go. My twin brother is missing, and now my parents demand to replace him in the Tournament of the Four Elements to protect the honor of the clan. But I don't care who wins this stupid competition of wizards; I don't need victory or the chance to learn from demigods. I am going to find my brother. Meanwhile, I must not reveal the deception, I must not expose that I am not him. Especially to that arrogant water wizard with the icy gaze. It's just that the wizard keeps showing up where he is not wanted.