今年赴任してきた学校で受け持つクラスは、不良生徒だらけで学級崩壊寸前で手を焼き、メンタルは限界だった。そんな中でも、物静かだが、真面目に授業をきく五日市さんは心のオアシスだった。ある日の通勤電車、目の前にすっと入ってきた制服女子。甘い髪の匂い、少し短めなスカートから覗くふともも。ストレスで判断力が鈍り、密着状態の車内で痴●行為を始めてしまう。これは、満員電車の不可抗力だ…！自分に言い聞かせながらも止まらない手。「これ、痴●ですよ。…でも、少しだけならいいですよ、先生」痴●している手を優しく握って受け入れたのは、教え子の五日市さんだった―

The class I was assigned to at the school I started working at this year was full of delinquent students, on the verge of collapse, and I was at my wit's end, mentally exhausted. Even amidst all that, Itsukaichi-san, a quiet but diligent student, was my oasis. One day on my commute, a girl in a school uniform suddenly appeared in front of me. The sweet scent of her hair, the glimpse of her thighs from beneath her slightly short skirt. Stress clouded my judgment, and I began to act lewdly in the crowded train. This is unavoidable in a packed train…! I told myself, but my hands wouldn't stop. "This is lewd… but it's okay if it's just a little, Sensei," Itsukaichi-san, my student, gently took my hand and accepted my actions.