Hibiki and company are trying out some new experiences to reach their fitness goals! First up, a home workout--then the beach! Not long after, it's time for the school sports festival. And then, Hibiki joins an arm-wrestling competition?!

Hibiki is a teenage girl who loves to eat, but when she notices her waistline expanding, she decides to check out the local gym. The gym is full of buff dudes...and Akemi, the student council president?! When Akemi tries to convince Hibiki to take up weight training, Hibiki resists--until she meets pretty boy trainer Machio. Now, Hibiki is willing to do whatever it takes to get fit!

It's time for a punching machine contest! Will the power of Hibiki's punch reign supreme once again? Also, why the heck is Jason in prison?

MUSCLE OTAKU! Zina is thriving in her new life as a Russian exchange student in Japan! She loves anime, cosplay, and idols—but she’s not just a fan. She wants to be an idol, too! Can she convince her new friends to form a muscle-building idol group?!

MT. MUSCLE It’s time for a field trip in the mountains! But what starts out as a fun fitness adventure soon spins out of control when Hibiki, Tachibana, and Rumika get lost in the woods. Will they miss out on the BBQ lunch...or make it out alive?

LET'S GET RIPPED! Hibiki and company are trying out some new experiences to reach their fitness goals! First up, a home workout--then the beach! Not long after, it's time for the school sports festival. And then, Hibiki joins an arm-wrestling competition?!

LET’S GET RIPPED! Hibiki and company are trying out some new experiences to reach their fitness goals! First up, a home workout—then the beach! Not long after, it’s time for the school sports festival. And then, Hibiki joins an arm-wrestling competition?!