Satan’s Deepest Cry is a Manga/Manhwa/Manhua in english language, Action series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

How unfair of the heavens and strange of the world… Wings were forged for flight, so why has god forsaken the ducks, chickens, and ostriches? Teasing their dreams of soaring through the sky, but confining them to the very earth. In a world where everyone is born with God’s blessing, he is the only anomaly. Can Ergera outclass the God that abandoned him, whilst simultaneously saving the people he loves?