In the Second Generation of the Trench, He Changed To the Ruanfan Script - Chapter 49:

A Deadly Secret, also translated as Requiem of Ling Sing and Secret of the Linked Cities, is a wuxia novel by Jin Yong (Louis Cha). It was first published in the magazine Southeast Asia Weekly (東南亞周刊) and the Hong Kong newspaper Ming Pao in 1963. Its original Chinese title was Su Xin Jian before Jin Yong changed it to Lian Cheng Jue. The story revolves around the adventures of the protagonist Di Yun, an ordinary young peasant, who is imprisoned after being framed. In his quest for vengeance, he accidentally acquires the Liancheng Swordplay manual (連城劍谱), an ancient artifact not only prized for the skills detailed inside, but also for containing a secret leading to a treasure.

He became a teacher at the best magic academy in the empire.
….For being mistaken for someone else.

Lan Chang’an has gone through two lifetimes of reincarnations, and in the third life, he aimed for stability until reaching the Nascent Soul Realm in hopes of unraveling the mysteries of the Nine Seal Stele. Consequently, he cultivated the Ancient Trees Evergreen Technique, which wielded modest power in return for greater lifespan.

His approach is not one of fearlessly engaging in battles, but of navigating with steady precision and forging meaningful bonds with others.

Throughout his long cultivation journey, he encountered individuals at various stages of their cultivation, including a Decent Faction Head, a Prodigious Beauty, a Giant Demon Lord, an Evil Cultivator, a Thousand-Year Old Demon, and a Puppet Master Pulling Strings From Behind The Scene.

Observing the ebb and flow of the world, witnessing its ups and downs, he unknowingly became a living fossil in the realm of cultivation, akin to an evergreen tree spanning through eternity.

In the world of mortals, the flow of life is steady, shrouded in the illusion of longevity, yet decisions are made decisively, with a clear sense of morality.

One of the six people called heroes, Raid, fought alone against the Devil, and ended up dead.

After meeting with a suspicious god, he woke up again and found out he has born again as a baby.

Moreover, as a daughter of his former companions.

In order to regain his former power, Raid/Nicole has to go through a life of hardships to reach the ideal he aims for.