Kai and Kyuhyun unite for ‘The Only Future’ from Kai On Musical Part.2. The duo sings a powerful duet that questions the very nature of existence. Lyricist Wang Yong Beom writes a complex dialogue between science and faith.
Released: February 10, 2026
단 하나의 미래 (The Only Future)
Kai | Kyuhyun • From “Kai On Musical Part.2”
Kai On Musical Part.2’s 단 하나의 미래 (The Only Future) Korean Lyrics English Translation
Wang Yong Beom drafts lyrics that frame a debate about humanity’s purpose. The poet uses strong lines like ‘Science is only meant to maintain the ecosystem.’ This songwriter creates a conversation that feels both ancient and urgent, questioning if we are masters of life or just an accident.
Saengmyeongeun changjo doeeojil su inneunga?Can life ever truly be created?
Hajiman saengmyeongeunBut life is…
Geurae, jane geu saengmyeongi mworago saenggakana? nuneuro bogoTell me, what do you really think life is?
Soneuro jikjeop manjyeobon jinsilmaneul malhaeSpeak only of the truth you’ve seen and touched yourself.
SaengmyeongeunLife is…
Saengmyeong geugeon danji uyeonil ppunLife is nothing more than a coincidence,
Keun ujue aju jageun sageonil ppuna tiny accident in this vast universe.
Misehan seporeul bokjehaneun hwahakjeok yujeonja dollyeonbyeoniIt’s just a chemical genetic mutation that clones microscopic cells;
Igeosi saengmyeongui jeongchethis is the true identity of life.
Saеngmyeong geugeon sinui jayeon seomniLife is God’s natural providence,
Hamburo dagaseol su eomneun segyea world that no one should dare to enter.
Ojik sinmani jeonghae non jilseoe gidaeeoIt only relies on the order established by the Divine,
Bojondoeneun saengtaegyeto keep the ecosystem preserved.
Igeosi saengmyeong bulbyeonui beopchik (igeosi saengmyeong bulbyeonui beopchik)This is the immutable law of life (this is the immutable law of life).
Illyuui choehuga dagaondaThe end of humanity is drawing near,
Silpaehan jinhwaui gyeolmalthe final result of a failed evolution.
Sesang galguhaneun geonWhat this world is truly craving
Saeroun guwonjayais a brand new savior.
Geugeon danji heoul joeun gyomanil ppunThat’s nothing but a grand mask for your hubris.
Gwahageun saengtaegyereul yujihal ppunScience is only meant to maintain the ecosystem.
AniNo,
Gwahageun saengtaegyereul ttwieoneomeoscience transcends the entire ecosystem.
AniyoNo, it doesn’t.
Gwahageun geu bimireul balkyeonael ppunScience only uncovers the secrets that are already there.
Geumdanui sagwareul meogeotdeon geotcheoreomJust like those who ate the forbidden fruit,
Eonjena inganeun yuhoge ppajijihumans always fall into temptation.
Dangsinui sinnyeomdo yamangil ppun (Oh)Even your convictions are just a form of ambition.
Daewinimeun sineul mitji aneusimnikka?Professor, don’t you believe in God at all?
Ani, sineul mideo jidokage, hajiman geugeon chukbogeul tonghaeseoga aniyaNo, I believe in God quite intensely, but it’s not through any blessing.
Jeojureul tonghaeseoji manyak sini eopdamyeon nuga i sesangeulIt’s through a curse; if God didn’t exist, then who could’ve
Ireon jiogeuro mandeul su isseosseulkka? naega chuguhaneun gwahageunturned this world into such a hell? The science I’m pursuing
Meon miraereul yeoljaneun geosi aniya, jigeum dangjangeul bakkujaneun geojiisn’t about opening a distant future, it’s about changing the here and now.
Jugeum, jiok, unmyeong, jeoju, ireon misin gateun sokbageseo beoseonaWe must break free from superstitious chains like death, hell, fate, and curses,
Jom deo hullyunghan inganui segyegwaneul mandeulgo sipeobecause I want to create a more magnificent worldview for humanity.
Jom deo keuge nuneul tteugo sesangeul bwaOpen your eyes wider and look at the world.
Gangyodanghan dodeok ttawi jamsi itgoseoForget the morality that’s been forced on you for a moment.
I jeonjaengui bonjireul bogo inneungaDo you see the true essence of this war?
Jinhwaga kkeunnan illyuui seontaekIt’s the choice of a humanity that’s finished evolving.
Gwahageun sarin doguro byeonjil dwaesseoScience has been corrupted into a tool for murder,
Myeolmangeul hyanghae chidanneun mujihan inganwith ignorant humans rushing toward their own destruction.
Dan hanaui miraeneun baro igeotppunThis is the only future left for us:
Saengmyeongui juchejaga doenda (Oh, oh)we must become the masters of life.
(illyuui saeroun sijak saengmyeongeul changjohayeo) jeonjaeng injong chabyeol daeryang haksal(A new beginning for humanity, by creating life) war, racism, and massacres.
(saengmyeongeul changjohayeo) jeonyeombyeong jayeon pagoe myeoljong wigi(By creating life) pandemics, nature’s ruin, and the risk of extinction.
(saengmyeongui juchega doenda) bonjiljeok haedabeun jugineun gwahageul(Becoming the masters of life) the fundamental answer is to leave behind the science that kills,
Beoseona sallineun gwahageul pyeolchindaand instead unleash the science that saves.
Saengmyeongui juchega doendaWe’ll become the masters of life.
Saengmyeongui bonjireul pahechyeo jugeumeul jeongbokaeUncover the essence of life and conquer death.
Yuyakan illyureul byeonhwahae muhanui jonjaeroTransform this weak humanity into infinite beings.
Ingan, bulmyeorui jonjaeHumans, immortal beings.
Ingan, jinhwaui yeonjangHumans, an extension of evolution.
Ingan, saengmyeongeul changjohaeHumans, we’ll create life,
Illyuui miraereul wihaefor the sake of humanity’s future.
단 하나의 미래 (The Only Future) Music Video
If you want to understand ‘The Only Future’, the lyrics debate creation versus evolution. The song features Kai and Kyuhyun and is part of Kai On Musical Part.2.