MTL - Start a Core Pod - Chapter 17 spy

Through a mysterious portal, Chen Jin arrived at this strange place – a post-apocalyptic world where civilization had been destroyed.

He was the merciless Soldier King on the battlefield who sent shivers down the enemies' spines; he was the soldier scoundrel in his squad who could make anyone both cry and laugh; he was the Big Brother everyone in the urban underworld aspired to be; he was the male god in the hearts of young girls and beautiful women; he returned with a mission...Uniting the underworld, establishing an economic empire, he vowed to become the supreme overlord of this world...To prevent the world from destruction, to protect world peace, to implement love and truth's evil, the lovely and charming antagonist, he is Xiang Yu, and he speaks for himself...

Ling Mohan is an extremely aggressive and domineering Colonel of the No.1 Military Industry Group.

One day, a woman who comes out of nowhere hits him in the head! It turns out that the two are acquainted and had a fling three years ago, after which Ling disappeared, leaving a note asking her to wait for him.

She, however, married another guy, who “died” as mysteriously as Ling Mohan disappeared.

Now fate has arranged a meeting for them on a narrow path. He is determined to avenge her with the craziest passion, and she is determined to torture him with the most seductive flirtation. When beast and beauty meet a second time, who will excel and triumph?

- Description from Novelupdates

There are 5 books on the 6 sworn brothers in a serial called streamer (流光系列). ‘They are rich, handsome and powerful. These book are on various types of love as well as on the bond and mateship between the brothers. Book on youngest 6th brother.

Chen Yu Bai (3rd brother) & An Xiao Yi – Chen Yu Bai is a sharp, domineering & cool man whereas An Xiao Yi is a foolish, childish & innocent girl. He is her boss & she is his secretary. He bullies her yet at the same time will not hestitate to protect & shelter her. Thus, she can always rely on him. Their relationship is a funny one on how opposite attracts.

Li Wei Ran (5th brother) & Qin Sang – Li Wei Ran and his cousin Qin Song fell in long with Sang Sang who is An Xiao Yi’s best friend. Sang Sang sees Li Wei Ran as a good man. He is polite, patient and passionate whereas she is independent, intelligent and interesting. They are a perfect pair but she is afraid to love so he has to work hard to convince her he is worthy of her love..

Short sequel on their children.