YHB!

A beautiful female teacher who is popular with her students is confronted by a group of girls who wish to establish a "lesbian sex club." Her initial impression is that they are an immoral and shameless group... But it seems to actually be a whole club that aims to nurture the development of a health mind and body...? A story existing exclusively for the purpose of yuri lezzy sex. An original R18 yuri lezzy manga. (Source: DLsite, official)