After failing his entrance exams twice, Haruo's father hires a private tutor who is considered to be the best in the industry. However, the tutor who turns up is Sana, a beautiful woman with a sexy and seductive aura... Sana begins to provoke Haruo, who has always shown no energy or motivation, by wearing revealing and lewd clothing. The erotic married teacher's extraordinary seduction is too much for a virgin college student to handle, and Haruo's motivation barometer rises like a rocket!