The Heavenly Prince's PA

When Chi died in the mortal 21st century world, she ultimately finds herself in the Heavenly Spiritual World thanks to the youngest prince of the Emperor of Heaven.

She is to be the personal attendant of the young prince which causes way too many young maids to be jealous.

Thus they shut her up into a forbidden room and it automatically sealed itself up.

Luckily for Chi, the room happens to be the secret Palace library in which she explored and skimmed the books before finding an amazing spell which allows her mind to connect with the Internet from her previous life. With that, she spent several centuries exploring the Internet, streaming videos, reading fiction, and listening to music while cultivating with the most basic of lessons.

By the time someone releases her, Chi discovers that her power level matches to that of the Emperor himself! Luckily, she is still considered to be the youngest prince's personal attendant so the two spend many happy centuries as master and servant.

Unfortunately, Chi ends up spoiling her young prince with spiritually rich meals, competent work, and the ability to make connections with benefits. Thus she gets no vacation time.

When the young prince gets incarnated into a mortal being as is the rite of passage for young deities, he cheats his way into remembering his old life and calls on Chi to help him deal with his mortal life.

Having no choice, she pops down to the mortal world whenever her master calls upon her for the most basic of orders. Cooking foods that fits his tastes, drawing out spirit rich baths, cleaning his clothes, and helping him escape from persist young ladies.

However, when her master orders her to incarnate into a mortal to become a maid for a mortal girl he fancies; Chi refuses. No way in Hell would she be a mortal again - especially in a world where there has been barely any change in evolution or technology for the past several millenia.

Furious that his loyal personal attendant refusing his order with good reason, the prince manages to find a way to get her into the mortal world - transmigration.

Therefore, Chi is forced to be transmigrated into the mortal world.

At least she still has her power level, her fatty armor, her Cauldren of Broken, and several other items from home. If Chi was going to suffer being in the mortal world, she was going to suffer in style.

As the personal attendant of a Heavenly Imperial Prince, Chi might as well help out with his love life.