MTL - The Ancestor of Body Repair - Chapter 33 spy

Gu Ji, a cadet at the SWAT Academy, downloads a game called Crisis Management. After he clicks it, he has been thrown into the game's world. After he beats an instance, the same event would happen in the real world.“Your Choice：Stamina Boost (Small)】or【Combat Specialization (Small)】”

Cultivating his power by slaying demons and taming countless beasts, the emperor solidified his throne as the world's ruler. But not once in his life had he expected that his disciples would use research on demonology to sap the world tree's power and push the world to destruction.Trying to fix his mistake, he opted to use all of his cultivated power to cure the world tree and block anyone from sapping its power ever again. But in exchange, he was to lose all of his power.But...the worst had happened, his wife... had betrayed him.

A mysterious wave of black mist swept over the whole planet, resulting in monsters and super power holders.And Jiang Hou awakens a talent under the corruption, becoming a... colossal beast of destruction.

Descent of the Phoenix – 13 Years Old Princess Consort

The strongest female assassin from a special assassination force met her death one day on a mission. To her surprise, she woke up in the body of a 13 year old girl, Mu Rong Liu Yue. Through Liu Yue’s past memories, she found out that she was bullied due to the huge birthmark on her face, even though she came from a renowned family. Liu Yue was beaten to death by her own cousin, and that’s how she managed to enter Liu Yue’s battered body. The assassin then decided to live her life as Liu Yue and swore to avenge her death.

- Description from Novelupdates