Kamen Rider Black Sun is a Japanese tokusatsu reboot of the Kamen Rider Black franchise. It follows the conflict surrounding the creation and use of the powerful Kaijin, exploring themes of discrimination, politics, and identity in a darker, more mature setting. The series reimagines familiar elements from the original work while presenting a standalone story aimed at adult audiences. It was released as a streaming series and is known for its serious tone and modern production style.