Mei Itsukaichi, a female teacher, cums 20 times in a row (IESP-741).

New teacher Mei is excited about her dream teaching life, but her class's grades and behavior are terrible, drawing criticism from other teachers. One day, a student who scored zero on a test asks her for any reward he desires if he gets over 90 on the next test, and she agrees. Unexpectedly, the student who passed the test demands oral sex…