Beverly

Set in the 1990's, high school student Ayu lives with her mother and grandmother in Fukuoka. She works as a model, but, to pursue an acting career, she goes to Tokyo with her grandmother. While attending a high school, she picks up acting work, but only minor roles. One day, Ayu meets Masa, who is the executive director of record label A Victory. He decides to make Ayu into a singer. According to Masa, Ayu prepares to make her debut as a singer. Meanwhile, she encounters jealousy from rivals at her record label. Trusting Masa, Ayu endures her problems. She also develops feelings for Masa and Masa also holds feelings for her.

The seventh annual stage show and concert for both the Kamen Rider and Super Sentai series, featuring cast members from both shows and popular singers of recent seasons.

After the end of the civil war that tore apart Japan, the new governors of Touto, Hokuto and Seito work together to reunify the country. However, they are actually members of an extraterrestrial race called the "Blood Tribe" (the same species as Evolto), who assumed their government positions as part of a plan to destroy Earth as they have done to Mars and other planets before. Considering Sento Kiryū (Kamen Rider Build) a major threat to their plans, the Blood Tribe manipulates his friends and other civilians into attacking him. With even his close ally Ryūga Banjō (Kamen Rider Cross-Z) now against him, Sento must fight to survive and stop the Blood Tribe's plan from succeeding.

Kamen Riders Build and Ex-Aid team up with the legendary heroes of the Heisei Generation - OOO, Fourze, Gaim, and Ghost.