We had a 2-night, 3-day study camp at Mari's house.

Mari is a widowed female teacher who has lost her husband for five years and has had a lot of sexual desire. Despite being a teacher, he maintained his rationality by masturbating six days a week. One day, I decided to hold a three-day study camp at home to prevent the three poor students from my class from repeating my year. Students are studying seriously, but are very interested in the truth, such as ``students peering in the bath, students stealing their underwear...etc.'' And then, Mari, who has been gazes at a man for the first time in a while, knowing that it's not good, her frustrated body ignites.