[+15 minutes with bonus footage only available at MGS] Prestige exclusive actress "Yakake Umi" becomes a teacher in the health room and gives sex guidance! - From practical foreplay methods to sex, Mr. Yakake puts his body on the line and lectures! - In the course on how to use sex toys correctly, I thoroughly explain how to make a girl feel good with rotors, electric massagers, and vibrators using my own pussy! - In order to convey that tempo is important in the piston version that makes a woman cum, she straddles the dick and shakes her hips in time with the metronome! - Prove with your own body that you can reach the best orgasm by keeping a certain comfortable rhythm! - AV teaching materials where you can learn about really good sex with Mr. Yakake!