Satoru has left girls swooning after his first kendo practice.  Everyone is talking about him, and there's a clamor when they discover that he's living with Makoto.  But at home, his stiff demeanor makes it very awkward.
You must be tired after practice.
Du musst ja müde nach all dem Training sein.
Debes de estar cansado por tus actividades.
Debes de estar cansado de tus actividades.
Tu dois être fatigué 
après ton entraînement.
Devi essere stanco dopo gli allenamenti.
Você deve estar cansado do treino.