At a co-ed ● school, health and physical education classes provide students with practical, hands-on sex education. The sixth period focuses on a theme called "Sexual Intercourse Practical Training," where students learn through direct experience. The lesson begins with an explanation of the importance of a strong erection, followed by female students performing blowjob techniques they've learned on male classmates. The teacher instructs, "Good! You've really mastered the blowjob. Don't make him cum yet—remember, swallowing semen isn't what your mouth is for!" Using handjob techniques taught in previous classes, flushed female students are also showcased. Then, the teacher uses Takigawa as a demonstration model, showing various sex positions such as missionary, doggy style, and cowgirl. "Watch closely! Take notes!" he commands, as Takigawa moans during the live demonstration, creating a huge reaction among the students. Takigawa's expression, overwhelmed by pleasure, radiates both humiliation and seduction. Students begin shouting, "I'm still a virgin!" and "Me too!" Inspired by the teacher's demonstration, virgin male students gradually take their turn, inserting into the girls' cunts one after another. In the end, they all shout, "Teacher! Her pussy is so wet and slippery, my dick just slides right in!" before unleashing massive facials. The teacher scolds, "Hey! That's not what this class is about!" but then adds with satisfaction, "But now, both boys and girls understand each other's bodies much better, don't you?" Enjoy this high-quality sex education program at a co-ed ● school, featuring the girls' expressions of shame and the students' growth over six full lessons.