"Your nipples, they're hard you know?" -The Onsen Town's Massage Comes with Insertion Service

"What to do... Feels too good that I'm spacing out...!" Kanako goes on an onsen trip alone after her boyfriend cheats on her. She hears of a popular hidden massage place in the onsen town she is visiting that has good reviews and is slightly away from the main tourist areas. As her reason for coming was to heal, she decides to check the place out. She decided to get a "special" oil massage that was offered by a handsome staff member. She's nervous by the risqué outfit and the staff's touch is ticklish but feels good...! But although she is just getting a massage, her nipples become hard. The massage starts to gradually progress, focusing on Kanako's important areas. Her mind and body become fully tender... That's when "deep" massage starts...!?

(Source: Eromangajima, translated)

Note: Released in 27 episodes and sold as 9 chapters.