After discovering Satomi has been working out at Silverman Gym (she left her pass on her desk), her teacher friends Yakusha and Aina decide to join in the fun, and are surprised to find the four high schoolers getting into weight training. Aina is concerned about her abs, so Machio suggests side bends (bicylce crunches are also recommended).
The oldest of the teachers (and very sensitive about that fact) turns out to be the best of all the women. She won’t reveal why she has such good muscle balance, but perhaps the fact her name is so close to the word yakuza has something to do with it?
The balance of the episode is spent on a school field trip to a very spooky mountain with a trail that’s “probably” fine, as the teachers put it. While Yakusha leads the way, exhibiting prime mountain climbing form (very different from walking on the sidewalk in the city), the other two teachers and Hibiki soon fall far behind, and by the time they adopt the right form, they take the wrong trail and get lost.
While Rumika and Hibiki are ready to write their wills and death poems, Satomi finds the tallest tree and starts to climb it, both so they can get their bearings and in case someone sees them. They pick way too big a tree, and decide the best way to climb it is to strip down to their underwear. That’s when Akemi, Ayaka and Gina spot them with binoculars, and Yakusha assumes they skipped lunch on the summit to continue athletic activities.
The addition of the two teachers made for some fun new dynamics, while Machio, back at the gym, apparently has a target on his back courtesy of a dude so huge and muscular even custom-made reinforced dumbbells are crushed in his fists like limp spaghetti. Perhaps the founder/CEO of Silverman Gym?