I'm always curious about my sister's legs, which are thrown defenselessly into the kotatsu. Stockings, knee-high socks, bare legs, the outfit and the degree of dirt change depending on the day, and her legs, tired from moving around all day, mature in the kotatsu and give off a strong smell. Ah, I want to smell them carefully... I want to touch them... I want to lick them... I want to be stepped on... I want to do whatever I want with these legs to my heart's content...