Konstantin Kosarev, also known as Mystery System is one of the most significant names in Pumping House sphere nowadays. 2010 - 2011 was a huge start for him. Being interested in electronic music production since childhood, he joined SPb underground clique under DJ Battery's wing. After making a plenty of collaboration works with Battery, Konstantin started blowing up the clubs among Saint Petersburg. By regular live performances on raves like Pumping Storm and making remixes on chart-toppers of that time, Mystery System implemented himself as a successful musician and gained popularity among Russian Hard Bass fans.
The year of 2012 brought Konstantin the opportunity to take part in some shows on russian Radio Record "Pump'n'Klubb" radiostation and collaborate with other musicians from the scene like Yurbanoid, Zhestyanschiki, BADWOR7H, Booben, Mass Effect and so on.
2013's "Mystery System & Yurbanoid - Tsunami" created a furore abroad: frequent support by DJs from Spain, Poland, England and signing on spanish digital label O-Mode Records made Mystery System a famous and demanded artist. 2014 is a year of a great success for Mystery: joining Poland's Pumpingland team, releasing the last tracks on FTH8TER5 label and a quantity of gigs in Spain under Re-Start Records' promo are the things that prove his position on Pumping and Hard Bass arena.