Arashi - Runaway Train

Translation notes: (1): Literally: “from that time” ? I think the implication here is that the girl has forgotten her dreams; she’s probably somewhat depressed and has given up so Arashi’s singing this song to cheer her up and help her.
(2): That’s literally what the line translates to, I debated on whether I should just write a line for the meaning but decided against it. I think it just means that aren’t you okay just the way you are (even if your dreams, etc are small).
(3): The whole song is a metaphor for a train; Arashi’s going to go to the girl and then they're going to run away on a train. Sho’s telling her to grab on to those plastic rings above your head that they have on the trains in Japan.

Romaji + Colorcode

Translation

Hahaha! Yeah Yeah! Arashi's back again
You know, this is how we do!
Yes yes!
Check 2 (Check 2) Check 1- Listen up!

Kisha wa yami no naka hashitta
Dare mo inai basho mezashite

Itsu no ma ni ka kasaneta mainichi
furikaerazu hashitta Rail de
Nani tsukande nani nakushita?
Ano koro no mirai wasuresou da ne

Kimi wo soko kara tsuredashite Runaway!
Nido to nai kono natsu wo kakenukeru 1・２・３ Lights up!

Mou ii yo jibun dake semenaide
Onaji kimochi kanjiteru

Dare ni mo ienai nayami kakae
warai nagara KOKORO wa kizutsuki
Mayoi nagara furue nagara
demo jibun no ibasho wo sagashiteru

Kimi ga iru nara dokomade mo Runaway!
Chiisana hana de ii janai makeru na 1・２・３ Lights up!

Ushiro wa mukanai hou ga ii
Koukai wa ano sumu sora ni So
Keep ya head up, keep ya head up
Kimi ga zutto fuan deiru nara
Gutto tsukande
Sing it!
Hey! Ho! Hey! Ho!

Kimi wo soko kara tsuredashite Runaway!
Nido to nai kono natsu wo kakenukeru

Kimi ga iru nara dokomade mo Runaway!
Chiisana hana de ii janai makeru na 1・２・３ Lights up!

The train raced into the darkness
Heading for a place with no one

Without noticing it we passed the days,
we ran along the rail [tracks] without looking back,
what did you get, what did you lose?
It seems like you’ve forgotten
about the future from back then (1)

I’ll take you away from there, Runaway!
We can run through this summer
which won’t happen again 1・２・３ Lights up!

That’s enough, don’t blame only yourself
We feel the same things

Carrying worries you can’t tell to anyone
Being hurt while laughing
While being lost, while shaking
But searching for our own place

If you’re here, we can runaway to anywhere!
Isn’t a small flower fine? (2)
Don’t give up 1・２・３ Lights up!

You shouldn’t look back
Your regrets will go to the clear sky So
Keep ya head up, keep ya head up
If you’re always uneasy
Grab on tight (3)
Sing it!
Hey! Ho! Hey! Ho!

I’ll take you away from there, Runaway!
We can run through this summer which won’t happen again

If you’re here, we can runaway to anywhere!
Isn’t a small flower fine? (2)
Don’t give up 1・２・３ Lights up!