Mobuseka:Leon's Adventure - Chapter 132

A part-time job contract. He became the cold CEO’s imitation boyfriend. He merely wanted to earn a few small bucks and live a comfortable life, but a pity, he was in constant turmoil since then. Well, life had something else for him despite his wishes.“That… beauty, will there be an increase in wages for conversion from ‘boyfriend’ to ‘husband’?”

- Description from Novelupdates

Lucia grew up not knowing she was a princess.

Adam was a young adult male 22 years of age, he was an orphan. His parents and little sister were involved in a car accident when a truck slammed into their car during a red light while at the age of 8. He lived his life and was able to graduate from university able to get a small office job with minimal pay his only solace was reading novels to escape from his lackluster life. One day after doing overtime and walking back home he was tired and didn't notice that he walked through a green light, suddenly a truck came slamming the young man off his feet and landing hard on the ground. He got reincarnated in a fantasy world as the bastard son of a Duke hated by his siblings he awakened his system after recovering his memories. Armed with a powerful system and an ancient lineage Adam aims to rise to the top and kill his enemies.NO HAREMNO YURINO NTR