I'm not afraid of mistakes Won't stop taking challenges People say grow up But I don't know what that means I don't care even if I fail Everything won't always go well Making a big mistake is better than not trying \"Growing up is giving up dreaming About the future\" Oh if that's how it is. I wish not to be a man that's grown up Don't bother me I just want to go straight this way Runaway train No one will ever stop me now So make way for me You'll get hurt if you don't listen Runaway train No one will ever stop me now Laugh at me that I'm crazy Just want to be honest to myself Some laugh but it's better to stay true \"Growing up is giving up dreaming About the future\" Oh if that's how it is. I wish not to be a man that's grown up I'm not afraid of mistakes I won't stop taking challenges My future I will decide myself Don't bother me I just want to go straight this way Runaway train No one will ever stop me now So make way for me You'll get hurt if you don't listen Runaway train No one will ever stop me now I'm not a puppet I'm not a scarecrow I'm not someone's dog I'm not a puppet I'm not a scarecrow I'm not someone's dog