Ruizhi is on a mission to help with the maintenance of a hot spring resort's infrastructure in Fukushima Prefecture. He quickly discovers that the job of "Yumori" (hot spring maintenance expert) requires passion, hard work, and a willingness to get one's hands dirty. He braves tough winter conditions on the slopes of a volcano to keep the thermal water flowing to nearby hotels. Does he have what it takes to succeed?

Aomori City in northern Japan receives some of the heaviest snowfall in the world. A daredevil from China joins the daily battle to keep Aomori Airport operational. He'll have to learn the basics of snow removal before moving on to de-ice a plane and joining the elite White Impulse team to clear the 3-kilometer runway. Will he rise to the challenge and succeed?

1 year after experiencing the harshness of winter in Gokayama, Softpomz from Thailand returns to the village in early spring. From maintaining the irrigation system to picking wild vegetables and rethatching roofs, she soon realizes that life in this small paradise is far from easy, and that it takes the whole community to preserve the village's ancient traditions.

Softpomz from Thailand embarks on a culinary journey to the island of Hachijojima to explore a distinctive aspect of the local diet: dried fermented fish, known in Japanese as Kusaya. She learns about this traditional preservation method from a local producer, helps fishermen unload their catch, and tries preparing her very own Kusaya. But can she get past the extremely powerful smell?

Ruizhi from China faces his toughest challenge yet: entering the arena of Japanese bullfighting. Over 3 days, he accompanies a bull master in Yamakoshi, a rural municipality in Niigata Prefecture that has been hosting ritual bullfights for centuries. From taming a one-ton beast to putting his body on the line and ensuring no one gets hurt, will he have what it takes to accomplish his mission?

Ruizhi from China stays at a hot spring like no other deep in the mountains of Nagano Prefecture - a place where humans coexist with monkeys. His mission: assisting with the daily chores of a hot spring inn. From cleaning outdoor pools, to conducting house repairs and clearing steam-hot geyser pipes - all under the gaze of our simian cousins - will he be up to the challenge?

Ruizhi, a social media star from China, heads out to the Japanese countryside to help harvest traditional winter delicacies. He tackles Kanten, a food that's made from seaweed and then dried outside in sub-zero temperatures. He catches a kind of whitefish and sorts males from females with his bare hands in freezing spring water. And he gropes for lotus root deep in the wintry mud! If he can accomplish his mission, he may get a chance to sample some classic winter delights. But it won't be easy!

Home moving services in Japan have a reputation for being both thorough and speedy. This time, Chinese social media star Ruizhi gives Japanese moving a try! He begins with a training session. He learns how each and every item is treated with care before getting a chance to work on an actual move. He also helps to move a living tree from one garden to another, and learns how they're carefully kept healthy during the process. Watch Ruizhi master the art of Japanese moving!

Our challenger this time is Ayatar, Japan resident and Thai influencer. An Ikebukuro, Tokyo, rooftop aquarium is the setting for his harrowing mission. Alongside 8 aquarium keepers he'll have to scoop out a jaw - dropping 500 moon jellyfish one by one in buckets, clean the entire aquarium by hand, and return the jellies safely to their Tokyo rooftop home. With only 5 hours to finish the job, will they be able to succeed?

Our challenger this time is Ayatar, Japan resident and Thai influencer. Birds like pigeons and crows can cause real damage. Enter the 1,000-year-old profession of the Takajo, or Japanese falconer. Through their mastery of the fearsome hawk, they use traditional hunting techniques to drive avian pests from urban sites like factories. But will Ayatar be able to master the techniques needed in just 3 days?! His struggle for control over the skies has begun!

Whether from ageing or a lack of exercise, Japanese dogs increasingly need rehabilitation. Vietnamese YouTuber, Haii, joins a canine mobility specialist.

Our challenger this time is Indonesian YouTuber in Japan, Nario Sen. Alongside a pet detective, who has so many lost cat cases that "cat detective" might be more appropriate, he'll seek out missing felines. Using eyewitness reports and other clues, as well as specialist tools like traps and searchlights, they'll close in on the target. Can he catch a cat?