KTRA-546 - My obedient super masochist sister has my own sex treatment, Anka Suzune.

A sadistic lolicon brother pranks his obedient sister "Kyoka" and gives her a little hard sex education! In order to meet the expectations of my beloved brother, I study sex hard! Kyoka-chan, a masochistic girl who is growing more and more naughty! Before I knew it, I had become a super masochistic girl who got excited when my brother slapped my butt and made me go deep...