Keiko Hashimoto

Nicola, who has ascended to the throne as the queen of Planet Trickle, has decided to form an alliance with Planet Chikyu. Bakuage Sentai Boonboomger has been invited to act as witnesses. However, a remnant of the Hashiriyan named Manhole Grumer appears and steals the jewel that's been passed down in the Trickle royal family from Nicola! Furthermore, Minongan, one of Dagded's five jesters appears and steals the Ohgercalibur ZERO, which was prepared for the alliance ceremony! The Ohsama Sentai King-Ohger rushes to the scene and fights alongside the Boonboomger, but the warriors are separated by Manhole Grumer's mysterious power. Taiya and the others were scattered across the stars, each take action to escape from this dire situation. Soon, a dangerous heartbeat begins to resonate from deep underground. As a powerful evil awakens, will the two great Super Sentai be able to come together again fight together?! The battle for the three planets begins now!!

Aki Miyagawa moved to Tokyo to pursue her dream to be a taiko drummer, but had a hard time balancing her strict training regimen with her part-time job. Now, after 15 years, she's returning to coach others for a taiko festival.