Souma is worried about his older brother because when he's focused on work, he neglects food and sleep. After discussing it with his friends, Souma decides to make a bento lunch for his brother.
so it's impressive that there's no 
sign of exhaustion on his face.
لذا من المُبهر عدم وجود أيّ أثر للإعياء في وجهه
non gli si legge in faccia che è stanco.
Incredibile.
É impressionante não
demonstrar cansaço.
Но при этом не выглядит уставшим.