Masaki Tsuji is a divorced high school teacher in his early 30s. Lately， he’s been running into a groper on his train ride to work. At first， he thought it was a mistake， but once the hand reaches around the front， things start to escalate! Then a voice whispers， ”You’re cute， Mr. Tsuji.” He can’t stop thinking about the perpetrator all the way to school. When Sohta， a student who usually gets good grades， hands in a blank test sheet， Masaki calls him in for a talk. They meet after school， and once Sohta confirms that they’re alone， he goes in for a kiss! Sohta whispers to a panicking Masaki out of the corner of his mouth， ”Have you been getting groped on the train recently?” Sohta ties him up and starts playing with his body...! This is a secret school love story between a handsome student and his 30-something teacher!