Well, it's just the prologue, that's why I don't say much ^^

~ Prologue: When Angels love. ~
(Ryosuke's PoV)

Sadly, I went up to Yuudai and looked sadly into his eyes. “I'm sorry.” He shook his head and stroked my cheek. "But ... you will soon be a fallen angel because of me. You don't deserve that. I might, but you should be allowed to stay." He tried to smile but instead he sobbed and tears ran down his pale skin. "That ... This is nonsense. I deserve just as little as you deserve to be allowed to stay here. Apart from that, how should I live forever with the certainty that I will never be able to see you again?" I carefully took his hands and pulled bring him closer to me. I wanted to memorize its smell and its appearance as closely as possible, even if I would soon forget everything. Involuntarily.
"Ryosuke?" When I saw the despair in his eyes, tears welled up too. I swallowed and gave him a weak smile. "Yes?"" We love each other, don't we? "I nodded in amazement and he returned my smile hesitantly." Then we will definitely find each other again. I know that ... "I had to look away because it broke my heart to see him like that." Of course. "Because of ... We both knew that it wouldn't turn out like that. How should we recognize each other among all the people on God's earth? But it seemed to help him to cling to that last straw, even if this security was more than was deceptive ...
“Kiss me.” I looked into his eyes and wondered if it was okay, but now that we were outcasts anyway. "Please, just this one time, because we won't be able to get any closer ..." He looked at me pleadingly and again the tears welled up in me, but this time I didn't hold them back. I carefully lifted his chin and looked again into those beautiful blue eyes that had looked at me with so much love a few days ago. Yuudai returned my gaze and when he finally closed his eyes I overcame the last distance between us and tasted his sweet lips.It was our first kiss but so infinitely more intense because we knew that it was also our last ...
A short time later we were banished from heaven, condemned to continue to live as human beings. Without any memory of our existence as angels. And that's only because, contrary to all morals, we fell in love with each other. And all we had left was this one kiss, but we would notice that we had never forgotten it ...