[Happy Heroes] The God of War Returns After Being Possessed

This is a fanfiction based on the animated series Happy Heroes Alliance. This is my first time writing fanfiction, and it's centered on Galo and Careful Hero, with Galo as the main focus. I'll do my best to stick to the official characterization, though the characters may be OOC. Thank you all for your support!

Synopsis:

Ever since being reborn, Galo has felt dazed and out of sorts. He thought it was a side effect of absorbing 4451's energy, so he didn't pay much attention to it. Later, after Dark Lord possessed him and tried to take over his body, he blamed the feeling on Dark Lord. But even after Dark Lord was defeated, the feeling wouldn't go away...

At last... while carrying out an Alliance of Heroes mission in a daze, Galo acted recklessly and caused Careful Hero's mechstone to shatter beyond repair. His mind finally cleared, but he couldn't accept reality, and spent some time drifting through life in a stupor.

Then one day... Galo seemed to see the sky shatter, Planet Xingxing break apart, and the entire universe dissolve into nothingness...

When he woke again, he was above Planet Xingxing, facing countless Scar Army battleships. In his hand was the energy core he'd just pulled from his chest, containing all his memories. The one who stood out most in those memories was the black-clad boy who always looked so cold. Galo faltered, unsure what was real, but as he felt the energy draining from his body, he had no time to think. Just as he had in his memories, he gave the black-clad boy inside the energy core one last smile and said, “Goodbye...”

Then the Scar Army's battleships were all destroyed, a statue of a God of War appeared on Planet Xingxing, and the boy in black seemed much the same, only more withdrawn.

Until, much later...

“4451...”