KING OF PRISM: Your Endless Call Movie Collaborates with THE IDOLM@STER SideM; Surpasses 500 Million Yen in Box Office

KING OF PRISM: Your Endless Call Crosses 500 Million Yen and Unveils Collaboration with THE IDOLM@STER SideM

The official site for KING OF PRISM: Your Endless Call -Minna Kirameke! Prism☆Tours- has revealed an exciting collaboration with fellow male idol-themed franchise THE IDOLM@STER SideM, marking a major celebratory crossover for fans of both universes. The new visual highlights the interaction between two idol units—Over The Rainbow from KING OF PRISM and S.E.M from SideM—sharing symbolic poses and themes from their respective series.

Collaboration Visual and Special Screenings

The featured characters include Koji Mihama, Hiro Hayami, and Kazuki Nishina (Over The Rainbow) alongside Michio Hazama, Rui Maita, and Jiro Yamashita (S.E.M). Together, they present “The Story Spun With You” and “Passionate Poses,” emblematic of their narrative arcs and stage presence.

From August 8 to 14, 2025, theaters across Japan will screen a newly recorded voice drama titled The Story Spun With You: Drama Shooting Edition. This exclusive pre-film content allows audiences to enjoy the dynamic between both idol groups, with a focus on the shared theme of Prism☆Voice Recording that connects the franchises in a unified storyline.

A prequel voice drama will also stream on the official KING OF PRISM social media channels ahead of the screening week to build anticipation and provide narrative context.

Limited Edition Theater Gifts

As part of the collaboration event, moviegoers attending screenings between August 8–14 will receive a limited-edition postcard featuring the crossover visual. This item will be available on a first-come, first-served basis and is designated as the seventh bonus item distributed during the film’s theatrical run.

Box Office Milestone

Released on June 27, 2025, KING OF PRISM: Your Endless Call -Minna Kirameke! Prism☆Tours- has quickly gained commercial success. According to the franchise's official X (formerly Twitter) account, as of July 28, the film has surpassed 500 million yen (approx. 3.35 million USD) in domestic box office earnings.

This milestone underscores the franchise’s enduring appeal among anime musical and idol fans, with consistent support from both returning viewers and new audiences discovering the glittering world of Prism Shows.

Franchise Background

KING OF PRISM began as a spin-off from the Pretty Rhythm series and grew into a standalone multimedia idol phenomenon. Known for its vibrant stage performances, character-driven emotional arcs, and flamboyant Prism Jump sequences, the franchise blends idol culture with magical performance battles.

THE IDOLM@STER SideM, part of the expansive IDOLM@STER universe, focuses on male idols with diverse backgrounds—from teachers to former lawyers—who come together under 315 Production to follow their dreams on stage. The collaboration unites two beloved fanbases and continues the trend of inter-franchise engagement in anime.

Why This Collaboration Matters

Crossover events like this highlight the growing demand for shared anime universes and special event screenings. Fans of idol-themed series often crave deeper engagement, and limited-time collaborations, voice dramas, and exclusive goods create immersive, must-see experiences.

This specific collab emphasizes storytelling through visual symbolism and voice performance, making it a standout in the Summer 2025 anime event calendar.

Where to Watch

While the voice drama screening and postcard giveaway are currently exclusive to Japan, international fans can stay connected through social media updates and potential future streaming announcements.

For merchandise, visuals, and voice drama content, follow the official KING OF PRISM website and social media platforms.