In that scene, Seitaro took a critical view toward the way how Ushimatsu begged for his students' forgiveness, putting on his knees on the classroom podium when he reveal his background.
この中で誠太郎は、丑松が素性を打ち明ける際、教壇に跪いて生徒に詫びていることを批判的に捉えている。