Oblivion: Together Until the End, With You

'We've missed each other for nine lifetimes. In every one, the person in your heart was someone other than me. In this final life, I want you to etch me deep into your heart. We'll make the promise we made back then come true together.'

'All right. In this life, let's promise each other a world of prosperity.'

Can we really make the world of prosperity we promised each other come true?