Harem In The Intergalactic Apocalypse - Chapter 161 Sister Systems

Lyle Walt is a young noble boy and heir looking forward to the day he can inherit his family’s territory. Except around when he was 10 year old, his parents started neglecting him more and more in favour of his little sister, Celes.
On his fifteenth birthday, he is challenged to a duel by his sister to see who will inherit the household and horribly loses, being cast out of his family. Afterwards, he gets treated by the family groundskeepers and receives the family heirloom Gem from him that Lyle’s grandfather had entrusted to him. From there, he begins an aimless journey with his childhood friend and former fiancée, Novem, and the Gem-turned-Jewel that houses the memories, personalities, and Skills of seven of his ancestors.

“Today’s sign-in +1 is not used, please start today’s sign-in!”

“Sign in successfully, get 10 billion cash, which has been transferred to the bank account, please check.”

Ding, 10000000.00 yuan has been credited to your bank card.

“The treasure chest has not been opened today, do you want to open the treasure chest?”

“Successfully open the treasure chest, get a luxury cruise ship worth tens of billions, a private helicopter worth tens of billions!”

Chu Ping: “This system is too awesome!”

- Description from novelbuddy

Bai Aoxue, the best mercenary in the 21st century, is accidentally sent back to the Chengxi Dynasty in Great Continent due to an explosion in her mission, and trapped in the first daughter of Prime Minister. After her rebirth, she is set up by her father to marry the 5th prince Jun Yeyan who wears a mask all day long.
In the face of bloodthirsty enemies, discord between brothers, collusion among courtiers and invasion of enemy state, can Bai and Jun resolve the crises? What will happen to their political marriage? How will the fierce battle for the throne end?
With many twists and turns, the book brings you to experience palace revolution, love and hatred thousands of years ago.

- Description from Novelupdates