Shunkan Heartbeat

"Shunkan Heartbeat" (瞬間ハートビート) is the debut song of ReGLOSS, the first wave of virtual youtuber group Hololive DEV_IS.
Shunkan Heartbeat was first revealed as an instrumental in the announcement teaser for Hololive DEV_IS. It was then used in a series of countdown teasers featuring silhouettes of ReGLOSS members, culminating in the release of the Shunkan Heartbeat MV. The MV also served as the announcement trailer for ReGLOSS.(Sep 3, 2023) Retrieved from https://www.youtube.com/watch?v=YGN8sZLZw1E
The song continued to be used in various trailers for ReGLOSS past their debut until a short period after its digital release.
== Audio ==
No.	Song 	Duration
1 	Shunkan Heartbeat 	3:34
2 	Shunkan Heartbeat (Instrumental)	3:34
== Milestones ==
=== 2023 ===
* Aug. 27 The instrumental for Shunkan Heartbeat is first teased as the background track for the Hololive DEV_IS teaser(Aug. 27, 2023) Retrieved from https://www.youtube.com/watch?v=FJ4Fh6Mqa0s
* Sep. 4 The MV for Shunkan Heartbeat is released
* Sep. 11 Shunkan Heartbeat is released digitally
* Dec. 29 Shunkan Heartbeat (SOLO ver.) EP is released(Dec. 28, 2023) Retrieved from https://www.youtube.com/watch?v=BoT8SjHO5_c
== Lyrics ==
<tabber>
Japanese = 
漠然とした不安 欲していた Fun
日常に違和感？うんざりしていた
見慣れたありきたりな眺め
理屈を超える変化を求めていた
窮屈で退屈な日々の中
突然 キミは現れた
全身の細胞 駆け巡るように
走り出した未完成なストーリー
モノクロだった景色が今
キミと出会い カラフルに彩る
Brand new world
ココロ奪われた
気まぐれな瞬間ハートビート
揺らぐ時空の狭間
もうひとりじゃない煌めく星
描く未来予想図は
同じ夢を引き寄せたいよ
果てしない旅路の向こうで
鳴り止まない ロマンが待っている
気づいた時にはね
I can't live without you
いつまでも キミと一緒なら
ここから先 広がる宇宙
晴れ渡る空 飛び出して
気分は上々 想像以上
机上の空論は終わりにして
すべて叶える 絵空事
時計の針が回り回る
限られた時の中で 鮮やかに
Dancing time
ココロ奪われた
気まぐれな瞬間ハートビート
揺らぐ時空の狭間
もうひとりじゃない煌めく星
描く未来予想図は
同じ夢を引き寄せたいよ
果てしない旅路の向こうに
紛れもない奇跡があるはず
さよならメランコリック
止められはしない この衝動
突き進むだけさ
形振りかまわず Are you ready?
限界はないさ 純度無限大の異次元
散りばめた閃き 夜空 漲ってゆく
喜びは哀しみの倍 分かち合っていこう
キミとならどこまでも
|-|
Romaji = 
bakuzen toshita fuan​
hosshiteita Fun​
nichijou ni iwakan?​
unzari shiteita​
minareta arikitarina nagame​
rikutsu o koeru henka o motometeita​
kyuukutsu de taikutsuna hibi no naka​
totsuzen kimi wa arawareta​
zenshin no saibou kakemeguru youni​
hashiridashita mikanseina sutoorii​
monokuro datta keshiki ga ima​
kimi to deai karafuru ni irodoru​
Brand New World​
kokoro ubawareta​
kimagurena shunkan haatobiito​
yuragu jikuu no hazama​
mou hitori janai kirameku hoshi​
egaku mirai yosou zu wa​
onaji yume o hikiyosetai yo​
hate shinai tabiji no mukou de​
nari yamanai roman ga matteiru​
kizuita toki ni wa ne​
I can't live without you​
itsumade mo kimi to issho nara​
koko kara saki hirogaru uchuu​
harewataru sora tobidashite​
kibun wa joujou souzou ijou​
kijou no kuuron wa owari ni shite​
subete kanaeru esoragoto​
tokei no hari ga mawari mawaru​
kagirareta toki no naka de azayaka ni​
Dancing Time​
kokoro ubawareta​
kimagurena shunkan haatobiito​
yuragu jikuu no hazama​
mou hitori janai kirameku hoshi​
egaku mirai yosou zu wa​
onaji yume o hikiyosetai yo​
hate shinai tabiji no mukou ni​
magire mo nai kiseki ga aru hazu​
sayonara merankorikku​
tomerare wa shinai kono shoudou​
tsukisusumu dake sa​
narifuri kamawazu Are you ready?​
genkai wa nai sa jundo mugendai no ijigen​
chiribameta hirameki yozora minagitteyuku​
yorokobi wa kanashimi no bai wakachiatte ikou​
kimi to nara dokomade mo​
|-|
English translation = 
A sense of unease, can't be outrun​
Craving all the world's fun​
Something off about the routine,​ ​​​​coming undone​
Was sick and tired of it all​
Only familiar sights, only familiar views​
Wishing for an inexplicable change​
And on one of those days​ ​so suffocatingly mundane​
You came from out of nowhere,​ like a bolt from the blue​
Wrote a story, to be continued​
That ran roughshod across every inch of my body​
The once monochromatic scenery has now​
Taken on new hues with you, it's a​
Brand New World​
Blowing the mind​
A whimsical, fleeting heartbeat​
A rift in the continuum​
No longer alone, a star is born​
Painting a picture of the ideal future​
Making a shared vision come together​
At the end of this long, long journey​
Awaits endless adventure and brand new stories​
Before I know it​
I can't live without you​
If I'm with you always​
A whole new universe awaits​
Taking off into the clear blue sky​
Spirits couldn't be higher​
Moving on from the drawing board, from twinkles in the eye​
To make dreams come true, ​make hell freeze over​
As the clock winds down​
The spell's wearing off, but keep it going on​
Dancing Time​
Blowing the mind​
A whimsical, fleeting heartbeat​
A rift in the continuum​
No longer alone, a star is born​
Painting a picture of the ideal future​
Making a shared vision come together​
At the end of this long, long journey​
Awaits a definite miracle story​
Say goodbye to melancholy​
There's no stopping this rising pulse​
Going full speed ahead​
Throw reason to the curb, are you ready?​
No limits, 100 percent otherworldly​
Scattered rays of hope light up the night sky​
We share twice more joy than pain​
With you, we can go all the way​
</tabber>
== Media ==
=== Audio ===
=== Videos ===
ReGLOSS - "Shunkan Heartbeat" OFFICIAL MV
<youtube width="320" height="240" alignment="center">Ix_uXN_ybxc</youtube>
瞬間ハートビート
<youtube width="320" height="240" alignment="center">IU6XeRGtGPo</youtube>
瞬間ハートビート (Instrumental)
<youtube width="320" height="240" alignment="center">LulvQAkZoDA</youtube>
HoLOGSS Cover
<youtube width="320" height="240" alignment="center">xTy12kFtmWk</youtube>
Hololive English Advent Cover
<youtube width="320" height="240" alignment="center">C2ZfsVVhdww</youtube>
Kikirara Vivi Cover
<youtube width="320" height="240" alignment="center">POg6S0ESoWE</youtube>
=== Images ===
File:Album Cover Art - Shunkan Heartbeat (SOLO ver.).jpg|Shunkan Heartbeat (SOLO ver.) album art|alt=Shunkan Heartbeat (SOLO ver.) album art
== Trivia ==
* Todoroki Hajime and Juufuutei Raden's verses at the end of the first refrain was used as the background track for ReGLOSS promotional shorts on the Hololive DEV_IS YouTube channel(Sep 5, 2023) Retrieved from https://www.youtube.com/watch?v=JYtkqRZkQy8
== External links ==
* Shunkan Heartbeat Digital Release
* Shunkan Heartbeat (SOLO ver.) Digital Release
* Shunkan Heartbeat - YouTube playlist 
* Shunkan Heartbeat (SOLO ver.) - YouTube playlist
== References ==
Category:Hololive Production Original SongsCategory:Hololive Production Original Song Singles