GVG-154 Big sister's real sex education Konno Hikaru You May Also Like Today's Popular

One day, the older sister Hikaru and her younger brother Tomoki discover their father's adult DVD. Tomoki, who is ignorant about sex, ends up talking about the DVD in front of her mother, causing a rift to flow through her family. This is the opportunity to teach Tomoki about sexual knowledge through his own body, but eventually Hikaru develops a different feeling from education...