MTL - Military Technology - ~ Calvin, please take a day off

Xia Yuqing is a shut-in+fujoshi from the 21st century. After an accident, she transmigrates into the body of a young princess forced into a political marriage to another country.

The journey to the martial peak is a lonely, solitary and long one. In the face of adversity, you must survive and remain unyielding. Only then can you break through and continue on your journey to become the strongest. Sky Tower tests its disciples in the harshest ways to prepare them for this journey. One day the lowly sweeper Kai Yang managed to obtain a black book, setting him on the road to the peak of the martials world.

Zhang Ming has obtained the god-level anti-sign-in system, which can disguise the Holy Land, attract others to sign in, and draw 90% of the reward.

【Ding! Zhanhong, the son of planes, checks in at your Sword of Swords of Immortals (pseudo), and you get the Secret Scroll of the Heavenly Book·True]

【Ding! Daoist Qingquan, the illegitimate son of the plane, checks in at your ginseng orchard (pseudo), and you get Xisui Dan × 90%]

【Ding! The transmigrator Wang Hong signs in at your Tianshi Mansion (pseudo), and you get Tianshidu·True]

【Ding! The reincarnator, Chu Fan, checks in at your Nine Dragons Coffin (pseudo), and you get the Desolate Holy Body × 90%]

【Ding! The reborn Ye Xiaoxuan checks in at your Miaomu Mountain (pseudo), you get the immortal mode × 90%]

【Ding! The extraterritorial demon Wang Zanghai checks in at your lock demon tower (pseudo), and you get the water spirit bead·true]

【…】

“Young man, you have to pay taxes when you sign in, you know?”

(Book Friends Group: 710233203)

- Description from novelbuddy