It was quite good. Arima Miku, Ashina Honoka, Onodera Mai, and Kosaka Himari appear. If such an attractive sauna actually existed, it would definitely make you want to keep going, a dream-like situation.
In the sauna room, Mai-san's sweaty nude body gets very excited about an erotic mission! I bought this without hesitation because my beloved Onodera Mai appears in it. She shows up from Chapter 4, with the setting being a female college student working part-time as a heat wave therapist at a sauna. She ends up being interviewed for a mere 30,000 yen reward, but the scene where she's made to change from her usual uniform into a thin tank top is irresistible. As the heat in the sauna room gradually makes the fabric see-through, the outline of her nipples emerging was extremely erotic.
Mai usually sends heat waves to female customers, but this time she has to deal with three male customers. At first she's just sending heat waves with a towel normally, but suddenly an erotic mission begins. With the condition that she can get 100,000 yen for each ejaculation she causes within 20 minutes, Mai accepts while looking embarrassed. It starts with just handjobs and blowjobs, but as the time limit approaches, it escalates with tongue kisses and having her breasts groped, which really stirs up excitement. Especially the titjob scene is depicted for a longer time, and I was very happy about that.
In the end, she makes the three men ejaculate a total of 7 times and earns 700,000 yen. But it doesn't end there—a special mission is activated. She has to choose one man she likes and have creampie sex within 10 minutes to get 1,000,000 yen. Mai hesitates, but from the anxiety of running out of time, she ends up accepting raw dick in doggy style. Her anxiety from not being able to make him cum as the time limit approaches, and her attacking him in various positions like cowgirl and missionary, really got me excited.
Finally, in addition to the creampie, she also performs a mouth ejaculation, and she gets a total of 1,800,000 yen! It concludes with Mai's words, "It felt good," and throughout, I felt it was a very erotic and wonderful work.