D4DJ D4 FES. -Be Happy- REMIX

 was a live concert, the seventh official live concert of the D4DJ franchise overall and a revival of D4DJ D4 FES. -Be Happy-. It was held on May 29, 2021 at Fuji-Q Highland Conifer Forest.

Special advance lottery application tickets for the concert were enclosed in physical copies of the singles 4U, I Shall Be a Cat, and Peak Peaky&Peaky!!.

Blu-ray copies of each unit's solo performances at the concert are included with the first-press limited editions of the singles Hey! Be Ambitious, Let us sing "Peaky!!", 4 Challenges, High tension BPM, (Re)termination, Adventure King!, and ALL FRIENDS.


 * Nishio Yuka as Aimoto Rinku
 * Kagami Karin as Akashi Maho
 * Mimura Haruka as Ohnaruto Muni
 * Shizaki Kanon as Togetsu Rei


 * Aimi as Yamate Kyoko
 * Takagi Miyu as Inuyose Shinobu
 * Koizumi Moeka as Sasago Jennifer Yuka
 * Kurachi Reo as Shimizu Esora


 * Tsumugi Risa as Izumo Saki
 * Maeshima Ami as Nijima Ibuki
 * Iwata Haruki as Hanamaki Towa
 * Satō Hinata as Fukushima Noa


 * Hirajima Natsumi as Seto Rika
 * Okada Mei as Mizushima Marika
 * Hazuki Himari as Hidaka Saori
 * Negishi Ai as Matsuyama Dalia


 * Kato Rihona as Aoyagi Tsubaki
 * Otsuka Sae as Tsukimiyama Nagisa
 * Momono Haruna as Yano Hiiro
 * Tsunko as Miyake Aoi


 * Tanda Hazuki as Sakurada Miyu
 * Shindo Amane as Kasuga Haruna
 * Fukagawa Ruka as Shiratori Kurumi
 * Watase Yuzuki as Takeshita Miiko

Guests

 * Koiwai Kotori as Kaibara Michiru
 * Komiya Arisa as Kase Mana


 * Raychell as Himegami Shano
 * Umemura Hinako as Takao Toka

Setlist

 * Source: Official Project Site

Trivia

 * This is the first D4DJ live concert to be held at an outdoor venue.
 * Happy Around! and Merm4id previously performed at the same venue as opening acts for a live performance for, another Bushiroad franchise.
 * A pre-event celebration project named "REMIX for D4FES." was launched on March 20, 2021. The following songs received their own new remix version in D4DJ Groovy Mix:
 * Dig Delight!
 * Electric Chaos★Countdown
 * Photon Melodies
 * Floor Killer
 * Movement
 * The Color of Tainted Sorrow
 * A post-event in-game challenge for the special title was held between 8:30pm on May 29, 2021 and 11:59pm on June 13, 2021 (UTC+9) with the following target song(s):
 * First Sheet: Guru Guru DJ TURN!! (Anime OP ver.), POP TEAM EPIC, H-A-J-I-M-A-R-I-U-T-A-!!, DIVE TO WORLD
 * Second Sheet: Happy Music♪, EZ DO DANCE, Love again, WOW WAR TONIGHT ~Toki ni wa Okose yo Movement~
 * This event included the participation of the J-LODLive (Japan Content Localization and Distribution LIVE) project organized by Visual Industry Promotion Organization for overseas brand promotion.