Yohei, who returned home late because his overseas trip with friends was suddenly canceled due to bad weather at his destination. As he opened the entrance door with a dejected heart… he heard a conversation between a man and a woman that didn't seem to belong to anyone from the house where only his mother should be. "…Madam." "Your dick was big and wonderful… maybe I'll ask you to deliver a big dick personally." What Yohei saw there was his mother seducing a young delivery driver. Shocked by his mother's lewd appearance, revealing a woman he had never seen or heard of before, Yohei was unable to make a sound and stood there, witnessing the whole thing…
