It is a Japanese YouTuber group based in Okazaki, Aichi Prefecture consisting of 6 members: Tetsuya, Ryo, Shibayu, Toshimitsu, Yumemaru, and Mushimegane. The group began posting videos on YouTube in 2013 and belongs to UUUM, which is an agency with numerous YouTubers since 2017.　They currently have 6.77 million subscribers. This is the 15th largest number in Japan. Their outdoor videos are usually shooted in Okazaki, and they have been appointed as Okazaki City sightseeing evangelists. Their often a bit extreme, vulgar, and crazy but funny and unique and crazy ideas make them very popular with men and women alike. My favorite video series is a competition in which humanities or social sciences and science majors are divided into two groups to create something similar to the actual product in their imagination and face off to see who is better. Moreover, the “cross” in which members who lose a game are punished for a long time, makes them famous. For instance, Tetsuya is not allowed to eat cream puffs until after the era of Reiwa. In the past, they have had to live in loincloths for a month, dress as pharaohs for three months, and change their endings of a word to strange ones for a month, and these punishments have even tied up their private time.