In July 2019, he was made the vice president of Johnny & Associates, a position he held until he resigned in November 2022 to pursue other career ventures.

Others who auditioned on the same day and joined Johnny's included Tsubasa Imai and Tomoyuki Yara.

[4] Tsubasa Imai said of his impression of Takizawa when he first met him, "His eyes looked exceptionally serious, unlike the others.

[8] Takizawa worked mainly as an actor on TV and stage in addition to his activities as Tackey & Tsubasa after his debut.

He starred in many TV series after his debut, including Boku dake no Madonna, but his best-known work was the 2005 NHK Taiga Drama Yoshitsune.

[14] In August 2017 he was appointed Japan-UAE goodwill ambassador by Taro Kono, the Minister of Foreign Affairs.

Takizawa had initially planned to work as a producer while continuing his entertainment career, but decided to retire from show business because he felt that he could not handle human life half-heartedly.

[7] Takizawa's channel launch was unusual because the Johnny & Associates at the time had strict portrait rights management.

In 2019, he produced a music video of trainee's group SixTones' new song "Japonica Style.

"[27] It was released on YouTube, was Takizawa's first produced work and was praised as a groundbreaking piece that incorporated Japanese elements with a cool atmosphere.

[33][34][35] On March 21, 2023, Takizawa announced on his Twitter Space that he was created a new talent agency Tobe, He became president.

[38] In March 14 to 17 2024, a joint concert to HEROes: Tobe 1st Super Live by all the artists in the group was held at Tokyo Dome.

[40] On February 6, 2025, Takizawa was announced as director of the opening ceremony for IG Arena in Aichi.

On November 10, he wrote being in the Danakil Desert in eastern Africa and noted that the temperature was over 50 Celsius (323 K).