いくせんもの交差する道で　僕らは出会えた
ikusen mono kousa suru michi de bokura wa deaeta
Between thousands of crossroads, we encountered each other.
{crossing paths/intersections}

まっすぐなまなざしで　未来を見据えてた
massugu na manazashi de mirai wo misueteta 
And we anticipated the future by looking straight forward.

何が起こっても共に歩けば
nani ga okottemo tomo ni arukeba
No matter what happens, as long as we walk together,

何大もの勇気が満ち溢れ
nandaimo no yuuki ga michiafure
we'll be protected by endless courage,

乗り越えられる　守られている
norikoerareru mamorareteiru
as we are able to overcome anything.
{lit: the greatest courage will overflow, and we're able to overcome it, and we will be protected}

赤に染まった夕日に誓った言葉は
aka ni somatta yuuhi ni chikatta kotoba wa
The words we vowed upon the scarlet sunset 
{red-stained}

セピアの月に吸い込まれていく
sepia no tsuki ni suikomareteiku   {or suikomareteiyuku, but in official lyrics they always make it iku}
were drawn into the sepia moon.

遥か結んだ厚い刻んだ
haruka musunda atsui kizanda
Connected afar and deeply engraved.

どうか永久に続きますように
douka towa ni tsuzukimasu you ni
Please let them last forever and ever.