Tate no Yuusha no Nariagari - Chapter 7 - False Charge

At 79, Adom is an old mage who has known nothing but illness and regret. When the world finally burns and all hope turns to ash, at the last beat of his fading heart, a mysterious being appears in the dimming light with a simple question:“If you could try again, would you?”What's left to lose when you've already lost everything?A handshake seals the deal, and Adom wakes up on his old school grounds, sixty-seven years in the past. When everything is still possible. A second chance with all his knowledge intact, his memories preserved, and his youth restored.This time, Adom wants it all: to feast on food he's never had, to travel a world still full of wonder, to finally live the life he dreamed of. There's just, as always, one small catch—he needs to prevent the end of the world first.But as Adom will soon discover, changing history might demand sacrifices even greater than watching it burn...

Baek Yigang is a son of the Baek Clan, one of the seven great clans of Zhongyuan. Afflicted with the Taiyin Qi Blockage, he is cursed with a shortened lifespan and the inability to collect internal energy. He had been peacefully spending the rest of his days indoors when he was ambushed by a group of masked people. During the ambush, he lost his servant who was like a sister to him. Chased by the attackers, Baek Yigang escaped through a secret underground path. When he came across a blocked path, he decided he’d at least die fighting and picked up a rusted sword that was stuck in the ground…

“Boss, Madam wants to play a role in a movie.”

“Invest in a movie and make her the lead role!”

“Boss, Madam wants to be a model…”

“Bring international models for her to use as a stepping stone!”

“Boss… Madam wants to be a singer…”

“Buy 1 million copies in advance!”

In her past life, Bai Qingyan hurt the man who loved her. He looked at her lovingly as he fell to his death and she realized she loved him all too late. To live a life once again, she vowed to grasp this happiness with him. No longer will she regret.

“Who calls my name? You aren’t worthy! Also, it’s time to pay off the debt and enmity incurred from the past. Are you ready?”

- Description from Novelupdates

One of the top expert killers, tired of endless assassinations and having survived a cruel and suppressed life, decided to escape the world’s strictest assassin organization.