How Could I Be Sad?

I think that no matter how many years pass, I'll still remember what you looked like the first time I saw you. It's all right if it's just the two of us. Walking hand in hand is enough for a lifetime. It's all right if one of us leaves first, because we'll have a lifetime of beautiful memories to look back on. I think we can just keep walking together, forever and ever. Even if I forget that I love you, it will still be all right. Theme: