GVG-154-Uncensored-Leaked — Big Sister's Real Sex Education Hikaru Konno

One day, Hikaru and Tomoki discover their father's adult DVD. Tomoki, who is ignorant about sex, accidentally mentions the DVD in front of their mother, causing a rift in the family. Hikaru decides to use this opportunity to teach Tomoki about sex with her own body, but before long, Hikaru begins to feel something other than education...