Learning how to say goodbye to you

Michael is an ordinary guy, nothing but regular and average. Yet, his monotonous daily life is suddenly overthrown by the death of him - Ciel Dujardin, the sun of Michael's dull life. Out of grief and regret, Micheal decides to rejoin Ciel in the afterlife - desiring to see him again.
After his suicide, Michael reawakens and finds himself stuck between the gate of heaven and hell. Because of the unique circumstances he was in, he was given a decision - a decision influenced by unspoken desires and broken pledges.
To see his beloved again, Michael was willing to give up everything and sacrifice himself by daring to fight against the gods.
...
"I want to relive my life."

I want to see him again, no matter what.

"So, it will be."

As I started to fall again, the voice said in an amused tone - it felt as if all of this had been a terrible nightmare. I closed my eyes as my surroundings began to blur, and my world started to collapse. I then saw a bright light in front of my eyes as I was born anew.
...
"He is my sun - the only light in my cruel world of darkness, my biggest mistake, yet he is...the love of my life." - Michael Knight