Little Bai Takes Flight

Xiao Ran transmigrated to a fantasy world.  As a dungeon guard in the Celestial Dungeon, with a special floor called the Purgatory meant for powerful demons and martial arts experts, he faced a huge challenge from the start. The Eldest Princess acquired a forbidden martial arts technique and was banished to the Purgatory. However, no one was powerful enough to restrain her. All the dungeon guards were defeated. Xiao Ran stepped up and declared, “Your Highness, it's better for you to behave yourself on my territory” and effortlessly subdued the Eldest Princess.
He progressed from imprisoning the Eldest Princess to delivering the Great Xia Kingdom from the evil clutches of various demons and evil martial arts experts.
...
Xiao Ran was the mastermind behind the scenes.

Atlas Studios

I Transmigrated As A Prison Guard And Suppressed The Princess

AtlasStudios

This time, a total of five items were displayed. 4,200,000 Mastery points, 300 years of Martial Arts Evolution, 300 years of soul cultivation, Earth-rank Martial Skill Perfection Card, Chess skills (Perfection).

"Not bad at all." Xiao Ran smiled.

he added 1.2 million Mastery points to the Spiritual Clarity Eye.

The remaining 3 million Mastery points were added to the Nine Heavens Evil Spirit Purification Skill.

After the attributes were refreshed,

Nine Heavens Evil Spirit Purification Skill: Dominating Refinement

The first skill had skipped "Dominating Refinement" and advanced by two small realms.

with more than 3 million Mastery points added, there was not even a ripple of improvement this time. However, when the skills technique was circulated, its power doubled, and the purifying spiritual force also doubled.

Someone from the Imperial Palace