Hiromu Takahashi (?? ??, Takahashi Hiromu, ring name: ?? ???) (born December 4, 1989, in Hachioji, Tokyo, Japan) is a Japanese professional wrestler under contract with New Japan Pro Wrestling.
Takahashi made his debut for New Japan Pro-Wrestling (NJPW) on August 28, 2010, and worked as a "Young Lion" over the following three years.
He is a member of Los Ingobernables de Japon (L.I.J).
In January 2014, Takahashi, renamed Kamaitachi (?????), was sent to the Mexican Consejo Mundial de Lucha Libre (CMLL) promotion to further his wrestling training and gain international experience, a tradition with NJPW "Young Lions".
In January 2016, he won his first professional wrestling championship, the CMLL World Lightweight Championship.
After leaving CMLL he worked for the American Ring of Honor (ROH) until the fall of 2016, with Takahashi returning to NJPW in November 2016, once again working under his real name.
Since his return, Takahashi has become a two-time IWGP Junior Heavyweight Champion and is the winner of the Best of the Super Juniors 2018 tournament.