Jun's dick is so big that he has gotten into the habit of playing with it unconsciously. - Although he was careful that women would feel uncomfortable if they saw him, his mother-in-law Ryoko finally pointed it out. - However, instead of getting angry, Ryoko starts asking for help from Jun, who is worried about his big dick, saying, ``Can you show it to me?'' - ``I wonder if it's normal to show your dick to your mother, even though you're in-laws...'' Jun, who broke up with his mother before he could even remember, didn't know what he was doing, but he was ashamed to show his big dick in front of Ryoko...