How Heavy Are The Dumbbells You Lift? Vol. 6

Hibiki Sakura is a second-year high school student who attends Koyo Girls’ Academy and absolutely loves food, especially junk food. But when her best friend Ayaka Uehara points out how she is gaining weight, she reluctantly decides to shed some pounds by joining the local gym, Silverman Gym. There, she meets the beautiful Akemi Soryuin, a popular classmate of hers with a serious muscle fetish, who is also thinking about joining in order to live a healthier lifestyle. However, Hibiki quickly becomes intimidated by the sea of muscular beefcakes in front of her and is just about to leave when she meets one of the trainers at the gym, Naruzo Machio, and falls head over heels for him. With renewed motivation to go from flab to fab, she begins her quest to develop the perfect hot bod in this sports comedy manga by Yabako Sandrovich and MAAM!
In Vol. 6, Hibiki, Aina, and Satomi go on a hiking trip up Mortuary Mountain, where they learn the ins and outs of tree climbing after getting lost and needing to get their bearings. Later, the girls get excited to work out their badonkadonks after learning how to do hip thrusts.
Notice: This manga is written in Japanese.