I can tell 100% that his brother is not dead, he probably ascended and join in ranks with other Monarchs. Monarchs cannot directly interfere with universe so he probably got forcefully kicked out because of natural laws.
What’s the point of doing a time skip if you’re just going to write all of the details and events that happened in full chapters anyways??? A quick summary should be enough. Idk why you did a time skip if you’r just writing it all anyways. e