My Genius Sister is Only Seven!? - Chapter 185 - Survival of the Fittest

“Missus, time to fulfil your duties!” Mu Yuchen demanded as he pulled Xi Xiaye closer with his arms intimately wrapped around her waist.

It was a meticulously planned feast for the powerful. Her fiancé had knelt down on one knee and proposed to her sister instead. Robbed of her right to her inheritance, she was prepared for the Xi family to throw her to the wolves.
As she slipped away from her family that had turned their backs on her, she found him — Mu Yuchen, the low-profile and reserved noble that ruled City Z and led Glory World Corporation.

“Mu Yuchen, let’s get married!” He looked up at her, then suddenly stood up.

“Where are you going?”

“Let’s go. Any later and the civil affairs bureau will be closed.”

- Description from Novelupdates

“Reincarnated into the World of Magic as a demon, the last thing Davis expected was to grow up right amidst the arms of angels. Ever since the group of philanthropic angels took pity on his miserable birth and adopted him, Davis has been forced to keep his evil identity a secret while he signed in to the system.

“”Ding! The Host has signed in at Angel’s Pond, ‘The Saint’s Halo’ is rewarded!””

“”Ding! Devil’s blood activated. Sign in error. ‘The Devil’s Curse’ is additionally rewarded!””

“”Ding! The Host has signed in at God’s Throne, ‘Gold’s Holy Axe’ is rewarded!””

“”Ding! Devil’s blood activated. Sign in error. ‘The Devil’s Manifistation’ is additionally rewarded!””

After a thousand years of quietly signing into places in the City of Angels and being rewarded with double the rewards, Davis’s true identity finally came to light! Now as a true Devil, Davis had both the world of angels and demons surrendering at his feet!”

Su Mo is a late bloomer, introverted and not very good at communicating with strangers.

I thought that my life would be so dull, but after participating in a national game “Star Ring”. Rediscovered the joy of life and embarked on the road to the top of the throne.

- Description from novelbuddy

Kim Mu-ryeong is the youngest member of a famous exorcist family. He grew up receiving love from his entire family and was considered a genius. The kind that appears once every hundred years. “Mu-ryeong, let me make a request.” After enrolling in high school, Mu-ryeong began to do simple exorcism work. The apartment’s elevator is acting weird. Someone is having constant nightmares. Even things like getting rid of a stalker or acting as a boyfriend. It was more of a problem-solver job than exorcism, But Mu-ryeong, being someone who helped anybody, There was nothing he couldn’t accept. But even for Mu-ryeong, there was one person he avoided… “Ki Hwan-young?” Tall and handsome with a mysterious, intimidating aura, And known for being impolite and having no friends. One day, Ki Hwan-young came to see Mu-ryeong. “My shoulders feel heavy lately.”