Yui, a new female teacher, is about to get married and has been living a fulfilling life both professionally and privately. However, her enthusiastic attitude toward unmotivated students becomes her enemy, and the gears of her life begin to go awry! Yui, who was a noble educator, wears bubbles as a soap girl and continues to receive unwanted orgasms as a plaything for men. The 4th installment of the popular Ryo drama series!