DMM GAMES Celebrates the Launch of "Koihime Taisen" with Exciting Campaign and Theme Song Release

The Grand Launch of "Koihime Taisen" and Exciting Events

DMM GAMES has officially launched their latest game, "Koihime Taisen," which brings together characters from the beloved Koihime series for the first time. In celebration of this monumental event, the official theme song "Koihime Shugo☆Isse no Se!" sung by KOTOKO has been released in full version, adding a melodious backdrop to the game’s vibrant universe.

To mark this occasion, DMM GAMES is hosting a unique campaign where fans can enter for a chance to win an exclusive Original NFC Acrylic Keychain. This keychain, a limited edition item, has the remarkable ability to play the official theme song when scanned with a smartphone, making it a collectible that fans can treasure while enjoying the music they love.

How to Participate

To join the campaign, players can follow the official X account of "Koihime Taisen" here. The campaign runs from March 19, 2026, at 5 PM until March 29, 2026, at 11:59 PM, so participants are encouraged to act quickly! A limited number of 50 acrylic keychains will be randomly awarded to lucky winners based on their entries.

Here’s the link for the game: DMM GAMES
Also, fans can download the game through the App Store and Google Play.

The Theme Song

KOTOKO's track, featured prominently in the promotional material for "Koihime Taisen," beautifully captures the essence of the game. The full version of "Koihime Shugo☆Isse no Se!" is now available for all to enjoy. It represents not just a song, but a celebration of the series and the connection it fosters among its fans.

Additional Campaigns

Moreover, DMM GAMES is introducing a third installment of the "PREMIUM Friday Campaign," where players can respond to challenges set by the character 公路 (Miyu). Participants who share their responses may win a unique Koihime Taisen Pure Gold Card, making it even more enticing for fans to engage with the campaign. The third round runs from March 20, 2026, at 3 PM to March 22, 2026, at 11:59 PM.

For full campaign details and eligibility, fans should keep an eye on the official posts and be aware of possible disclaimers and privacy policies provided by EXNOA. Questions about the campaigns can be directed to DMM support through this link.

About "Koihime Taisen"

"Koihime Taisen" brings a thrilling twist to the gaming world, turning famous historical figures into charming girls within a comedic and action-packed storyline. Players will embark on an adventure in a fantastical realm, aiming to rescue beloved characters from a mysterious organization while striving to return them to their original worlds. This new title marks a significant addition to the Koihime franchise, promising exciting gameplay dynamics and engaging character interactions.

For more information, visit the official site at Koihime Taisen and subscribe to their YouTube Channel for updates and content.

The game is available on multiple platforms, including PC and smartphones, offering a free-to-play model with in-game purchases, catering to both new and veteran players alike. Don't miss out on the action and join today!

Conclusion

DMM GAMES is excited to foster a community of fans and players through engaging campaigns and fantastic content. Whether you're a long-time follower of the Koihime series or a new adventurer ready to dive in, there's never been a better time to be part of this vibrant world.