YST-294 Ichika Amami Silently Devoured My Sister Who Started Layering

Ichika is not good at appearing in public, but cosplaying makes her bright and cheerful, as if she has changed as a person. I took a cute pose in front of my brother and started a photo session with my relatives, but this brother actually had a strange propensity and was delusional about my sister's still developing body and was masturbating every day. And on this day, I had an individual photo session with my sister, but my brother skillfully dragged my sister into the erotic world and carried out incest.