Due to a marital quarrel, the wife's friend Hitomi left home and ended up staying at our place for a little while. Although she acts lively, her occasional lonely expressions worried me deeply. One day, as I watched Hitomi's back while she vacuumed wearing a maxi dress that clung tightly to her body, I began to harbor a suspicion. There was no panty line where there should have been one. It might be a thong... or perhaps she wasn't wearing any panties at all... Since then, I've been spending sleepless nights...