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Plot version: Song Yu, an ordinary young man trapped in a reincarnation bug, will return to 18 years old when the bell rings at midnight on his 22nd birthday. Hundreds of years of repeated cycles have made ordinary young people no longer ordinary. But this time, the anomaly broke Song Yu's infinite loop. Alien species in the apocalypse have arrived at a time when they shouldn't have appeared. What role do travelers with strange powers play? This time I finally waited for you.
Emotional version: [Bad Player & Bad Tempered Loyal Dog] After the humanoid weapon in the base lost his memory, he met a weak young man who kindly took him in. The young man had a perverse and naughty personality but was good at pretending to be a gentle gentleman. He thought they would live a slow life of fighting alien species and exploring the truth of the world, but everything came to an abrupt end with the young man's sudden death. Until he saw that living life resurrected again.
"I've been waiting for you for a long, long time."
Intention: The courage not to look back