MTL - Transmigration with QQ Farm - Chapter 173 : Heaven is the card, the origin is clear

The most unlucky woman in the world vs The most mysterious man in the world.A piece of paper declaring a marriage alliance between two enemy families was not her business. Because she would never be picked as the bride anyway.Officer Tai Liwu's bad luck was not just broken heels, exploding cars or birds pooping on her head. It also extended to her dating life--which did not exist. She had resigned herself to a lifetime of arresting bad guys and surviving death with zero romance. But when her sister has a panic attack before walking down the aisle, Tai Liwu is shoved into the bridal hall and told to smile.On the other side of the aisle, City Lord Shen Weijun was dealing with his own disaster: his brother, the intended groom had drugged him, put him in the grooms clothes and bolted! Forced to step in under a false identity, Weijun expects nothing more than a political farce. After all, their families are sworn enemies and this wedding is supposed to be a ceasefire, not a love story.But trouble brews when Weijun finds himself falling for the sharp-tongued police officer who can arrest a pickpocket with one hand and chase after her hat with the other. Pretty soon, he is more interested in kissing her than fearing her bad luck and suspicious intentions.And Liwu, her “bad luck” takes a twist when on her wedding night, she awakens a bad luck system, throwing their lives into chaos.

The aliens came with hostility.
Facing the invasion of aliens, human beings are weak like ants.
So this is the end, the real end.
But there is resistance when there is an invasion.
For some, this is not the end, it is war.
So this is war.
Real war!

- Description from Qidian

The MC entered the body of the An family eldest son, An Ziran, an arrogant 16 years old boy who weighed 78 kg (~171-172 lbs), who only knew how to eat, play and sleep. Seeing his current body, An Ziran decided his first priority was to LOSE WEIGHT!

A young boy genius, Suo Jia, is a water mage who dreams of being a warrior travelling the great and dangerous trade routes to find his lost father that set off on them before Suo Jia was born. Having to look after his sick mother, Suo Jia manages to find a way to solve all their problems, as well as make a name for himself. He gathers nobility, vast wealth, items of great power, knowledge lost to the ages, and exceptionally talented females around him as he plots and plans – preparing to set off on an epic journey that will go down in history as a new legend. However, will others that depend on his powers so much be willing to let him go on such a dangerous journey so easily?

- Description from Novelupdates