While on the Spring Break trip with the gym, Hibiki and Akemi have a heart to heart on the beach. The girls share a moment as they reminisce about how far they've come and how thankful they are to each other. Hibiki thanks Akemi for pushing her to go to the gym, while Akemi thanks Hibiki for helping her become friends with Ayaka and Gina. This is nice heartwarming moment between and Hibiki and Akemi. This was a great way to end the series and show us just how far Hibiki has come since the beginning. Her journey wasn't easy, but seeing her enjoying her new life with all of the new friends she has made just puts a smile on your face.

Seeing the gym was closed for the day, Gina suggests they jog to Akihabara in order to compete in an idol competition. Everyone agrees and the girls head to Akihabara. During the competition the girls ride in on some of the muscular men from the gym and show off their unique skills of hand to hand combat, bench pressing, and finishing it all with a deadlift from Satomi. Despite the crowd loving their performance, The Muscle Gals don't make the cut. One of the things that makes Dumbbell Nan Kilo Moteru? is all of the wacky scenarios the girls find themselves in. The idol competition may just be the best one in the entire series. Their whole performance is enjoyable and hilarious and it only gets better the longer it goes on.

Machio's former trainer and mentor Barnold Shortsinator comes to Japan and offers Machio a spot in a competition he sponsors. The next day, Machio heards to the competition along with Hibiki and her friends who came to cheer him on. Machio steps up to begin his turn and with one pose is able to shock the crowd and the other competitors instantly winning the competition. Seeing his progress, Barnold offers Machio an opportunity to compete against him, but Machio declines because he doesn't want to leave the members of Silverman Gym behind. Machio is one of the best characters in Dumbbell Nan Kilo Moteru? and it is nice to see him get a whole episode to himself. Most of the time Machio is on screen, he is just there to be funny, but this scene does a great job at showing us a more intense side to Machio and how seriously he takes his job.

Hibiki decides to enter an arm-wrestling competition in order to win the grand prize and buy a home theater system. On the day of the competition Hibiki learns that only one other girl had entered. The other girl in the competition is a Russian girl who just arrived in Japan named Gina. Thinking she'll have a tough match ahead of her, Hibiki prepares to give it her all to win. Much to her surprise though, Hibiki is able to easily defeat Gina and claim the grand prize. This is one of the funniest moments in the entire series and it is also the first time we get to meet Gina. What makes the scene funny is that there was so much build-up to the match only for it to end in an instant

Hibiki and Akemi begin their first workout at Silverman Gym along with their trainer Machio. They start out with some bench press and Hibiki is only able to lift the bar. Struggling to do three sets of 10, Hibiki is amazed and a little disheartened seeing how much Akemi is able to lift. Machio comes over and gives her a little pep talk, and reveals his shredded body as he encourages her to keep up with her workouts. This scene gives us a little bit of everything and shows off all of the great aspects of the series. It is hilarious, we get to learn a lot about Hibiki and Akemi, and there is even a little bit of fanservice. However, what really makes this scene the best is the unexpected reveal of Machio's ripped body and seeing his little head on such a muscular frame.