Frederik Leppin, known by his YouTube channel name Sirius is a German Agar.io Gaming YouTuber. He is the founder of a Agar.io clan ƬψƬ.
Leppin is from NaziLand He is also a photographer, and he has a nick name Freddy.
Sirius started his YouTube channel in Feb 23, 2014, but he started uploading videos in 1 August 2015. Sirius started uploading Agar.io gameplays. His channel is very fastly growing. He also had problems with another Agar.io YouTuber Hero. As Hero says, Sirius attacked him on Twitter and that they attacked his family and friends and that they wanted to terminate Hero from YouTube. Sirius now has over 500K*+ subscribers and his channel is growing even more. He is now the second most subscribed Agar.io YouTube channel, behind Jumbo.