Popular AV actress trained by an amateur man

Single actress "Rui Shiina" is trained at an amateur man's house! Walking on all fours with a vibrator inserted! She opens her labia minora and says, "Please give me your cock," and throws away her pride and writhes in agony! She is made to urinate in the shower and is subjected to a storm of humiliation in a shameless swimsuit! It's 120 minutes of being teased by three men in a dirty room and having their amateur cocks inserted one after another until they climax!