I guess, technically, this is also going to end up being a BE:FIRST song.
The subtitled episode has the English translation of the lyrics, but not the romaji, so I thought I'd type it up.
Be Free
Produced by: SKY-HI, Chaki Zulu, sty
[Manato]
TELL ME BABY donna kimi mo
Hitotsu nokorazu ni oshiete yo
[Reo]
BETTER DAYS donna mainichi mo
Ichi-byou datte minogashitakunai yo
[Reiko]
Kurikaeshiteru owaranai RUUTIN
Kawaribaeshitetai
[Rui]
Kimi to nara hamidashitai na
YA READY? Kono te o totte
[Junon]
LET YOUR FEARS GO
Kanashimi ni wa ai o
SO LET YOURSELF GO
Mune no muchuu moyashitara
STAY WILD AND
[Manato]
BE FREE!
Atarashii asahi ga noboru you na egao
Boku ni misete yo
SO I WANT YOU TO BE
[Reo]
BE FREE!
Ima sugu ni jiyuu ni yume o miyou yo
IF YOU CAN DREAM IT, YOU CAN DO IT
Subete omoi no mama sa
[Manato]
I KNOW mada monotarinai n darou?
[Sota]
STOP AND GO
Dokomademo tsukiaimashou
[Manato]
Kumo no ue de CHILL
[Sota]
Dare ga jama dekiru?
[Manato]
Hoka no dareka ja nai kimi to ima mo yume o miru
[Rui]
LET’S GO BABY wasurenaide
Bokura yagate tobidatsu BRAND NEW DAY
[Reiko]
IT’S OKAY omoidashite
Kono te hanasanai itsumo tonari de
[Reo]
Fumidashitara tomenaide MOVIN’
Furimukanai shi
[Sota]
Kimi to nara mucha shitai na
YA READY? Tobira hiraite
[Junon]
LET YOUR SOUL GLOW
Tamerai ni wa yuuki o
SO LET YOURSELF GO
Ima sugu mirai dakiyoseyou
STAY STRONG AND
[Rui]
BE FREE!
Atarashii asahi ga noboru you na egao
Boku ni misete yo
SO I WANT YOU TO BE
[Reiko]
BE FREE!
Ima sugu ni jiyuu ni yume o miyou yo
IF YOU CAN DREAM IT, YOU CAN DO IT
Subete omoi no mama sa
[Sota]
I WANNA BE (WHAT?)
YOU WANNA BE (WHAT?)
WE ALREADY GOT THE WING
COME WITH ME (AH YEAH!)
I WANNA BE (WHAT?)
YOU WANNA BE (WHAT?)
NOW WE’RE GONNA FLY
COME WITH ME
Motto ikouze SPEED UP
Chuu o mau namida
Oikoshite waraouze yuuutsu na ashita
DAIYAMONDO, MIRION DARAA
to ka nanimonaku tatte SUUPAAMAN
Otona kara mireba PIITAA PAN
(OK!) nara tsureteku NEBAARANDO
[Manato]
BE FREE!
Atarashii asahi ga noboru you na egao
Boku ni misete yo
SO I WANT YOU TO BE
[Junon]
BE FREE!
Ima sugu ni jiyuu ni yume o miyou yo
IF YOU CAN DREAM IT, YOU CAN DO IT
Subete omoi no mama sa
Kanji:
Video is subtitled