Visiting my mother at night

Yayoi, who was raising her only son, Kota, on her own, secretly worked part-time at a hotel restaurant to earn a living. Kota was living a peaceful life unaware of such things, but one day, he heard that his friend had become a customer of a hotel lady who looked like his mother, and he began to look at his mother with suspicion... ``There's a hotel that looks like your mother, and there were three moles on the house.'' Kota crawls under Yayoi's futon to confirm the truth of his friend's words, but...