[10] As Takeshita was being congratulated by DDT general manager Amon Tsurumi for winning his first match before his debut, Fukuda hit him with a low blow and then pinned him to regain the title.

[12] At the end of 2013, Tokyo Sports named Takeshita Japanese professional wrestling's Rookie of the Year, with him becoming the first wrestler still in high school to win the award.

[1] The two were eventually joined by Tetsuya Endo, with whom they went on to win the KO-D 6-Man Tag Team Championship by defeating Shuten-dōji (Kudo, Masa Takanashi and Yukio Sakaguchi) on July 13.

[17] On August 17, Takeshita took part in a high-profile interpromotional match, when he was defeated by New Japan Pro-Wrestling (NJPW) representative Hiroshi Tanahashi at DDT's annual Ryōgoku Kokugikan event.

[1][22] On December 23, Takeshita and Endo defeated Shigehiro Irie and Yuji Okabayashi in the finals of a tournament to regain the vacant KO-D Tag Team Championship.

[1][23] With Kudo sidelined with an injury and Kota Ibushi announcing his resignation from DDT, Takeshita was poised to take a larger role in the promotion.

[25][26] With the win, Takeshita became the youngest KO-D Openweight Champion in history,[27] beating the previous record held by Nosawa Rongai by three years and six months.

[30][31] After three successful title defenses, Takeshita lost the KO-D Openweight Championship to Shuji Ishikawa on August 28 at DDT's biggest event of the year, Ryōgoku Peter Pan.

[40] On August 20 at the 2017 Ryōgoku Peter Pan show, Takeshita made his seventh successful defense of the KO-D Openweight Championship against 2017 King of DDT winner Tetsuya Endo.

[7] On November 2, Takeshita became a double champion, when he and his All Out stablemates Akito and Diego defeated Damnation (Daisuke Sasaki, Mad Paulie and Shuji Ishikawa) to win the vacant KO-D 6-Man Tag Team Championship.

[43] On November 28, Takeshita and Yuki Ueno won the cross-promotional 2017 Differ Cup by defeating the Pro Wrestling Noah team of Hitoshi Kumano and Katsuhiko Nakajima in the finals.

[48] On June 26, Takeshita, Akito and Shunma Katsumata defeated Koju Takeda, Kota Umeda and Yuki Ueno to win the KO-D 6-Man Tag Team Championship.

[52] On May 19, Takeshita defeated Soma Takao in the finals of the 2019 King of DDT tournament and thus became the number one contender to the KO-D Openweight Championship then held by Endo.

[53] On June 24, along with his All Out stablemates Shunma Katsumata and Yuki Iino, he won the KO-D 6-Man Tag Team Championship by defeating Chihiro Hashimoto, Dash Chisako and Meiko Satomura.

[58] In August, Takeshita entered the King of DDT Tournament, defeating Naomi Yoshimura and El Lindaman to advance to the quarter-finals, where he was eliminated by Kazusada Higuchi.

[59] Between November and December, Takeshita took part in the D-Oh Grand Prix 2021, where he won his block with a record of four wins and two losses, advancing to the finals.

[64] On June 26, on the Summer Vacation Tour in Osaka, Takeshita and Katsumata defeated Smile Pissari (Harashima and Yuji Okabayashi) to win the KO-D Tag Team Championship.

[69] During All Elite Wrestling's first-ever non-televised event called "The House Always Wins", Takeshita made his debut for the company in a 10-men tag team match.

They lost the match against a team that consisted out of Death Triangle (Pac, Penta El Zero Miedo and Rey Fenix) and the brothers Mike and Matt Sydal.

At Worlds End on December 30, Takeshita teamed with fellow Don Callis Family member Powerhouse Hobbs, Ricky Starks, and Big Bill in a losing effort to Jericho, Sammy Guevera, Sting, and Darby Allin.

[87] During the AEW International Championship match between Will Ospreay and Ricochet on the fifth anniversary episode of Dynamite on October 2, Takeshita attacked both men causing it to end in a no contest.

[90] On December 28 at Worlds End, Takeshita successfully defended his title against Powerhouse Hobbs, who defected from the Don Callis Family two months prior.

[95] After successfully defending his championship against Tomohiro Ishii one day later at Wrestle Dynasty, Takeshita announced that he had also been signed to NJPW whilst remaining under contract with AEW and DDT.