Between 2016 and 2018, the real estate agency Uchicomi! was a regular sponsor of DDT Pro-Wrestling. On July 22, 2018, at Summer Vacation 2018, the Uchicomi! Openweight Ultimate Championship was contested in a Scramble Tag Team Rumble Match in which seven teams entered the match in a regular rumble rules match fashion until one team emerged. The victorious tag partners then went on to fight in a regular singles match for the inaugural title.[3] In this second phase of the match, Ken Ohka defeated Gota Ihashi and was presented with the belt by Uchicomi! director Michiaki Nakano.[2]
Since then, the title has never been defended, nor has it been officially deactivated.[4]