MTL - My Runes Can Be Upgraded - Chapter 11 Take down the Boar King

A mysterious natural phenomenon caused the Earth to be plunged into darkness. The world turned into an endless bloody chaos and mankind is on the brink of extinction…

Chu Yun Sheng, an ordinary white-collar worker, discovered his family heirloom book shining a bizarre light by accident. Out of curiosity, he tried to study the heirloom book.

After a long research, he still only understood a few symbols written in the ancient book. However, he was shocked when he figured out what messages the ancient book tried to tell him: the sun will disappear, and humanity is doomed…

He tried to spread the message, but no one believed him; his family and friends even tried to take him to see the psychiatrist. Eventually, he gave up telling anyone, but prepared for the apocalypse in secret.

Until one day– the sun really disappeared…

- Description from Novelupdates

Kael, a reclusive and antisocial man, died alone in his apartment, consumed by frustration and regret. But his tale didn't end in darkness. Reborn in the unforgiving world of Eridoria, where the law of the jungle reigned supreme and apes were eerily absent, Kael found himself in the body of a lion cub with a unique bloodline.This was no ordinary rebirth; he was a lion unlike any other. Thrust into the complex web of pride dynamics and social hierarchy, Kael must navigate treacherous alliances, rivalries, and his own primal instincts. With a fierce determination burning within, he sets his sights on a singular goal: to claim the title of the ultimate King of Beasts.Warning: R18, incest, harem, neutral MC, violence.

An unnamed 34-year-old Japanese NEET is evicted from his home following his parents' death.

Upon some self-introspection, he concludes that his life was ultimately pointless.

Walking down a street he intercepts a speeding truck heading towards a group of teenagers, in an attempt to do something meaningful for once in his life he manages to pull one of them out of harm's way before getting himself in the way of the truck and dying.

Awakening in a baby's body, he realizes he has been reincarnated in a world of sword and sorcery.

He resolves to become successful in his new life, discarding his past identity for his new life as Rudeus Greyrat.