[FSDSS-524] Because my step-sibling from my parent's remarriage was a former bully... My record of in-house training SEX that cruelly teased her G-cup huge breasts, Koyomi Watanuki, with panties and photos included.
During middle school, I was bullied and became a recluse from that time on... One day, my father decided to remarry, and the stepchild of his new partner turned out to be Koyomi, the very person who had bullied me back then... 'Don't ever come out of your room for the rest of your life, w virgin hikikomori Takefumi-kun.' Koyomi hasn't changed at all since back then... This is revenge. I'll grasp Koyomi's weaknesses and play with her G-cup giant breasts in a sneaky and dirty way.
