I'm 90 years old and the system tells me it's time to create harem - Chapter 13: I hope we can always be happy together

Cho Ryu Hyang was good at math from a young age. When he enrolled into the The Theoretical Maths and Martial Arts School, the teacher, Jo Gi Chun, recognized Cho Ryu Hyang’s talent immediately and took him in.

--WSA 2025 ENTRY--Neraxis saved the people and wiped out the monsters, but instead of cheers, he faced silence and a glowing blue text:[Task Failed Successfully!][Rating Generated: SSS-Rank]“The hell does that even mean?” he muttered, finding the situation a bit strange.Before he could process, the so-called heroes—who had hidden while he fought—emerged. He waited for gratitude, only to feel a dagger pierce his back.The only girl he loved stood behind him.She betrayed him.The crowd and heroes? They were staring at him with disdain and contempt.“You...” he groaned as a spear and sword headed for him, ending his life.But instead of dying, he was sent back to the past—specifically, to the first day of the academy, year 2367, 8 years before his death.However, many things had changed. One of the most significant was the sudden appearance of a Tower, a mysterious structure that had appeared across all the continents, granting power to those brave enough to contest its challenges.“Not again... With this chance I will end you all” Neraxis vowed to himself, embarking on his path of revenge, while also trying to give his life new meaning.

When Zhou Yi woke up, he realized that he had become the prison guard of the Heaven Dungeon.Although he was fortunate enough to find a Fruit of Eternal Life, he did not possess any powers to protect himself.In a world of cultivation where demons and monsters roamed freely, Zhou Yi decided to hide himself and train for thousands of years.Time passed by quickly.The child he had freed 100 years ago had become the founder of the Great Qian Empire.The teenager he had helped 1000 years ago had become the elder of a celestial sect.The pet he had kept 10000 years ago had become the Absolute Demon King of Foreign Lands.This is the story of a normal person who has eternal life, the story of how he watched countless events unfold and eventually becomes the Supreme Celestial of Eternal Life.

Kubei was just an ordinary pencil and button pusher working a day job, hating his boss and making horrible speeches when one day he fell asleep after pushing an all-nighter. When he woke up, he was bound to a chair, facing three creepy robed women and in a body way too young and way too weak to be his own. As he slowly came to, he realized that he was no longer in the same universe as he was before. He had teleported to the Kingdom of Helius, where an all-powerful church rules its lands and wages war against the elusive group known only as Mages. Armed with an incredibly cocky neural interface that just won’t shut up and his own sheer wit, our MC will find himself not just fighting to survive, but maybe even something bigger than himself.