It is a time where the realms of gods are connected, the cause of the connection is the great war against the Titans that its only goal is the extinction of all life in Midgard(Earth).
The Realms of Gods thought that they could protect each of their territories, but alas the appearance of the Seven Deadly Sins lead the Titans to wage war against the Gods first rather than Earth. Thus many realms fall to titans, surviving gods escaped to other realms. The Titans destroyed Takamagahara(Japan), Heavenly Realm(Chinese), Avalon(Tuatha De), and others. These events mark the beginning of the war that would define the future.
Our MC is the Son of the Most Powerful of The Seven Deadly Sins, Marcus Morningstar in a journey to redeem himself and correct his mistakes caused by his father Lucifer Morningstar.
Author Zankoeqq