 Morishima debuted for All Japan in 1998, but left in 2000 to join the newly-formed Pro Wrestling Noah(founded by Misawa), where he became a mainstay.In Noah, he frequently teamed with Takeshi Rikio as Wild II, and the duo have previously held the GHC Tag Team Championship.On March 2, 2008, Morishima defeated Mitsuharu Misawa at the Budokan Hall Event of Pro Wrestling Noah's Second Navigation Tour to become the 12th GHC Heavyweight Champion.