Rima, a student in the math class taught by Tamura, has poor grades and is at risk of repeating the year. Since having a repeat student in his class would reflect poorly on him, during the one-week summer break, Tamura decides to give Rima private tutoring sessions. Rima, who shows no interest in studying, tries to seduce her teacher, Tamura, hoping to get credits! Rima takes a liking to Tamura's penis and goes wild with lust in the empty school…
