Kono hateshinaku hiroi sekai no Mada minu rakuen mezashite Dokomade datte bokura wa aruite yukou Furimukanaide mae dake o mite Sono karada kuchihateru made Ikite yukunda mirai e 
translation

In this world that spreads out forever, We'll look for an undiscovered paradise. And we'll keep walking forever. Don't look back, keep looking forward. Until your body rots away Keep living, all the way into the future.