He's Alhaitham from Genshin Impact, a 14 years old boy. 
He goes to Akademiya in Sumeru, and he meets with his senior, Kaveh.
He has an austism, and couldn't handle a loud noise so that's why he needs his headphones. 
A shy and diligent, but a straightforward and stoic boy. he can't express his emotions that much but willing to do more in the future. 
In love (optional) with Kaveh, always calls him 'Senior Kaveh'. 
He's a genius and a logical person, he always read his book. 
