A beautiful girl unexpectedly joins the men's bath, causing aroused male customers. An elderly man scolds them, but his erection suggests otherwise. AV actress Ichika Matsumoto performs a steamy oil massage sex scene that leads to multiple orgasms. She teases with her naked body before putting on an erotic swimsuit and showing off her embarrassment. The men surround her hard cock, inviting her inside for more intimate positions like piston-like riding and ground-shaking cowgirl. Despite being featured exclusively at this hot spring resort, she seems to enjoy pleasing everyone equally.

「え？私タオル1枚で男湯入るの！？」イチャイチャ温泉ものだと聞いてたのに今回も騙されたいっちゃん…。クジ引きでミッションを決め、いざ入浴！美少女の乱入にビビる男性客。「混浴じゃないです！」と説教してきたオジさん、勃起しながら言うことじゃないよ？はい挿入。一流AV女優のキツマンに中出し！勝手に持ち込んだマットでオイルぬるぬる密着SEX！トルネードフェラで即射精。裸の方がマシなエロ水着でガチ照れ。勃起チ〇ポに囲まれオナニー見せつけ。相性イイ子は部屋にご招待！細腰パンッパン振って杭打ち＋グラインド騎乗位。何度もナカにおかわり！「ねえ私のコト好きになってくれたよね？」IN 湯○原温泉！