The truth about "a guy who just wants to have sex" and "a girl with tan lines and a happy life." Yui, 23. A happy girl who can instantly respond to jokes and has a great time after five glasses of plum wine! She confidently agrees to a game of table tennis, but just before she takes off her clothes, she says "No!" When he persistently presses her, she says "Gross!", regrets her strong denial of his personality, and reluctantly takes off her bra. When the already naked man rubs his penis, she unexpectedly becomes embarrassed → After being rubbed multiple times, she finally gives in to the embarrassment and grinds on top of him, stopping just before coming six times in a row. A big-breasted girl who wouldn't do it no matter how much money you offer, finally gives in to her shame and has sex!