Chiaki endured intense suffering during the previous yam torture session, yet this time she invites over her close friend—also a coworker—and restrains her to try it again. Right in front of her bound friend, Chiaki grates fresh yam and smears it all over her body. "Okay, just try to endure it~," Chiaki says, pretending to leave—but soon returns, deciding that mere endurance isn't enough. She intensifies the torment by adding tickling to the mix. Growing bored with the game, Chiaki abandons her helpless friend and heads upstairs. Taking advantage of the real second-floor setting, she indulges in extended abandonment play. When she returns, she grates another yam, visibly disappointed that its itch-inducing effect is milder than before. Seeking stronger stimulation, Chiaki switches to a different, more potent variety of yam. After leaving her friend suffering for a while, she comes back wielding a vibrator. The second round of yam application proves highly effective, and the post-cut reactions are intensely realistic, captured in wide-angle shots for several seconds. In the end, Chiaki gets carried away—only to be punished herself with relentless tickling, delivering a fitting conclusion to the session.