[1] The character of Yoshihiko has been portrayed exclusively by a series of inflatable or stuffed female sex dolls, but he is treated as a real competitor within kayfabe and has held four different championship titles.

In DDT events and on television broadcasts, Yoshihiko is treated as a human opponent, and it is tacitly understood that the fact that he is a doll is not mentioned.

Taking advantage of his ultra-lightweight body and imperviousness to human injury, the doll can perform superhuman acrobatic movements (referred to as "sixth-dimensional killing techniques" by commentators).

[5] He fought a fierce battle with Inokuma, but then withdrew from the ring due to a mysterious illness (air leakage) that caused his entire body to shrink like a balloon.

Then, at DDT Max Bump 2009, Yoshihiko and Dieno challenged Kota Ibushi and Kenny Omega for the KO-D Tag Team Championship.

On October 25, 2009, he faced KO-D Openweight Champion Kota Ibushi in a double title match at DDT Welcome To Never Land 2009 at Korakuen Hall in Tokyo.

[10] He disqualified Yotsukaider with a hurricanrana, but was on the defensive against a fierce attack from Kengo Mashimo and Hiroyuki Miyamoto, and for some reason, he and Abdullah Kobayashi got along well over their nipples .

[11] They lost the championships on July 25 in a triple threat match also featuring Kudo, Antonio Honda and Yasu Urano, as well as winners Great Kojika, Mr. #6 and Riho.

[14] In July 2020, he made his first solo tour of the United States and fought Joey Janela in an Ironman Heavymetalweight Championship title match at Game Changer Wrestling's Homecoming Weekend PART 2 in Atlantic City, New Jersey, but was defeated and the belt was taken overseas.

[15] Yoshihiko was one of the final three wrestlers left standing out of more than 80 who competed in the 2024 Clusterfuck Battle Royal at Joey Janela's Spring Break.

[16] Mao and Yoshihiko successfully defended their BZW Tag Team Titles at DDT's New Year☆Dramatic Parade 2025 ~Answers Will Be Revealed One Year Later~ on January 3, 2025.