Guyu

A man who fell into the demon world returns to Earth as the most powerful demon lord with absolute power. However, what awaits him are mysterious monsters. Slash! Blood stitches the air, and the man’s voice echoes once more. “I’ve finally returned.” The Demon Lord’s return to Earth marks the beginning of the ultimate battle!

"It had been 300 years. There was no way the best knight wouldn't show up." The ancient characters in the crystal mirror swirled chaotically. "If we're lucky, maybe an A-class knight will be born." "Please..." "Confirmed!" The chief engineer's voice was full of excitement. But no matter how long they waited, there was no follow-up report. Confused, Hakken opened his eyes. The crystal mirror showed the name and rank of the newborn knight in large letters. Name: Seed Rank: F Seed, the flawed product that shattered the kingdom's expectations. He endured all kinds of scorn and neglect, but in the face of death, he awakened his abilities. The stormy growth of Seed, the unique knight with boundless potential. \[Level up! Would you like to distribute your stats?]

Kim Soohyuk, a veteran rescuer in Shinil-seo was crushed and killed during a rescue operation in a collapsing building. Soohyuk, who thought he was dead, opened his eyes in an incident 10 years ago. \[Save Everyone] He was able to save two people that he couldn't save in the past. As a reward, he was also given new abilities and strength. "Great. From now on, I will save the lives of those I couldn't save in the past!"