どこから来て　どこまで歩いてゆくのだろう
いつになれば　このものがたりは終わるのだろう

しあわせ　もとめてゆこう
いのちの　つきるときまで
みわたせば　未来は
遥かかなたへ続いてる

歩こう　歩こう　あなたとともに！

見えてないから楽しいのよ
見えてないから生きてゆくの
教えないで　教えないで　自分でさがすから
Mystery of Life！

doko kara kite  doko made aruite yuku no darou
itsu ni nareba  kono monogatari wa owaru no darou

shiawase  motomete yukou
inochi no  tsukiru toki made
miwataseba  mirai wa
haruka kanata e tsuzuiteru

arukou  arukou  anata to tomo ni!

mietenai kara tanoshii no yo
mietenai kara ikite yuku no
oshienaide  oshienaide  jibun de sagasu kara
Mystery of Life!

Where did I come from, and how far will I walk to?
When will the day come when this story ends?

Let's go seeking happiness
Until our lives come to an end
When you look around, the future is
extending out far in the distance

Let's walk, let's walk, along with you!

Because I can't see it, it's fun
Because I can't see it, I keep on living
Don't tell me, don't tell me, I'll find it on my own
Mystery of Life!