【Kapa】Desire and Sisterhood

The younger brother, Ru, who is self-loathing about [looking at his sister in a sexual way
Somehow, through self-discipline and a cute girlfriend, I’ve managed to cut off the dreaded pheromones from my sister.

However, I happened to catch my sister masturbating too hard with herself as a wanker. ……*

Kapa-sensei draws an incestuous story of sweat and love dripping out of her mouth, too thick to be reasoned with!