Lilith: Origin of Succubi - Chapter 22

Silas was not like other omegas; he was stronger than them and feared no one. This was because he couldn't feel the pheromones of alphas,but his mate rejected him on his 18th birthday and accepted his stepbrother instead. Silas decided to leave the pack, but just then, something terrible happened, and he ended up in the hands of their rival pack.There, he reunited with his long-lost brother, who was dearly loved by the four alpha brothers of that pack. But what will happen when Silas starts to feel the mate bond with those four brothers?---------------------------------“Your eyes are the most beautiful,” said a handsome alpha and my boss, who was my brother's mate. I didn't want to feel anything for him, it was wrong.“Stay away from me,” I pushed him away. But still, he came closer and started sniffing my scent near my neck. When I looked up, I saw my brother standing at the door, watching us.---------------------------in this story mc is-Strong omega-confident-overprotective-stubborn-savage

He is a young man without a spirit root. It is believed that this denies him the chance at cultivation. However, a mysterious lady imparts a Supreme Demon Classic to him and from then on, he starts his path of cultivation.
He undergoes a total transformation to emerge as the most fearsome and powerful fiendish demon in his era, that even immortals and fiends are fearful of him, and saints are at his beck and call.
Mastering the Supreme Demon Classic is the turning point in his life. He is able to unleash his immense and divine power from within, illuminating the entire universe!

- Description from Novelupdates

Being young is a treasure, but education is indispensable.For Han Yu, who started working at sixteen, being too young wasn't a good thing.Due to his young age, he was almost turned away by the leaders when assigned to a bureau.Witness the story of the youngest police officer in the history of the Linghai Public Security Bureau turning his life around.

Kōdo Ikusei Senior High School, a leading prestigious school with state-of-the-art facilities where nearly 100% of students go on to university or find employment. The students there have the freedom to wear any hairstyle and bring any personal effects they desire. Kōdo Ikusei is a paradise-like school, but the truth is that only the most superior of students receive favorable treatment.

The protagonist Kiyotaka Ayanokōji is a student of D-class, which is where the school dumps its “inferior” students in order to ridicule them. For a certain reason, Kiyotaka was careless on his entrance examination, and was put in D-class. After meeting Suzune Horikita and Kikyō Kushida, two other students in his class, Kiyotaka’s situation begins to change.