Shoujo Grand Summoning - Chapter 11: the legendary transcript mission! hayate the combat butler, starts!

A story of time-travel. Sly and cunning, she unexpectedly became a sickly noble lady whose fiancé is merciless and demotes her to a lowly concubine. She sneers and bravely breaks off the engagement. To hell with scumbags, marry heirs to lords, blind the courts with her brilliance.

Once upon a time, an Alchemist Grandmaster from the World of Immortals accidentally took possession of a playboy, who hailed from a rich and powerful family, and became a student in the middle of his midterms.

By the means of a miraculous immortal technique, he blended in and mingled amongst the femme fatales’ group to dominate the city! The nature of this novel’s origin is shamelessness to the core; having no sense of shame is just a basic foundation, but if the most shameless isn’t set yet, then become it!

- Description from Novelupdates

Zhao Xu goes back 10 years in time to the day when Arthur’s game servers opened. Only he knows that one year later, the earth will be destroyed and everyone on earth will transmigrate into the world of Arthur! PS: MC is a double character class of Wizard and Archivist, training in both the arcane and the divine, includes metamagic/magic guards/spells/rubies/action points/hyperactivity/pause/temporary effect/activation/in-game purchases in the making.