Kyoukai Senjou no Horizon - Volume 1, Chapter 12: Innocents in Remorse Way

As a kind of punishment, the wings of a demon king were cut, and he eventually lost all of his power. To get back his power, he made a deal with the angel. He will go to the realm of humans to find a special girl with a special skill who is meant to be her queen. If the woman got pregnant, all of his sins would be forgiven, and he will regain all his powers. But he didn’t think that knowing her would be an adventure for him as the king of demons in the human realm.

I became a professor in a game by accident. To make matters worse, I even messed up the difficulty settings. Now, I’m stuck playing on Hell Mode. A world on the brink of war with the Demon King. An Assassin Department where mu*der is legal… as long as you aren’t caught. I thought I’d have to claw my way through just to survive in this wretched place, and that was the case at first. But nowadays… “No matter how hard I try, I can’t be like you, Professor… How do you do it?” “Please… become our god.” “What do you know? What is it you know? Why do you make me want to live…?” One by one, everyone at the academy began to obsess over me.

The heroine has no cp
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Yi Linglong, no one has seen her face, no one knows her gender, but there are rumors in the rivers and lakes that this is a man who looks like a good woman.
His martial arts are strong, cold as frost, and a dagger seems to be able to kill all living beings in the world.
He kills one person in ten steps and does not stay for thousands of miles, but he has a maverick that is different from other Jianghu people.
His story can be said for three days and three nights. As a unique existence among assassins, he has become a legend. …
“I told you about the deeds of my male god, did you hear it?”
“I heard, I heard. Is there anything else? I’m going to collect sauerkraut.” Hua Rongyue waved her hand and turned away.
“Hey? Why is it not like you? Is it interesting, cooperate with me anyway, what is my male god doing now? You can figure it out, let me figure it out.”
Hua Rongyue, “…”
——If my calculation is correct, your male god estimates that 80%, maybe, is now accumulating sauerkraut in a small medical hall…

Content tags: Jianghu grievances, disguise, misunderstandings, women disguised as men
Search keywords: Protagonist: Hua Rongyue (Yi Linglong) ┃ Supporting role: People in the Jianghu ┃ Others: Hua Rongyue, Yi Linglong
One-sentence introduction: rushing through the rivers and lakes~

- Description from novelbuddy

On his 20th birthday, Asher's mother confessed something he never expected. After the truth was revealed, she died giving her last blessing to him. That's when Asher found himself all alone, confused about his own identity and worrying about his future.What did she say?-He was someone special?-Someone people would come after?She said he was coming from a very rare but also a very special race called omega where men could get pregnant. Was it real? At first, Asher strictly refused to accept his mother's confession. But in the end, he had to believe it. Because it was the bitter truth.If he was really coming from such a rare race, and had such a special body, did he have to live all his life hiding so he wouldn't get caught and become someone's plaything? Was that the only way to avoid getting the bad ending his father got?Why was he even born as someone like this?! He just wanted a peaceful life.So, it wouldn't be as dangerous as his mother said if he just forgot he was special and lived like a normal person, right? People would not notice. Alas, it's been a long time since people last saw an omega and they must be believing no omega exists now.At least that's what he thought...He thought people might have forgotten about his existence and he would not have to face any problems in the future. Whether he was special or not, he still became a target.When he was kidnapped and auctioned as a slave, he regretted ignoring his mother's last advice.“Don't trust anyone easily. Your safety is in your hands and protecting yourself is your duty.”He could only blame himself and expect for the worst if his special identity was to get revealed and meet the same end as his father did.However, his fate gave him a second chance along with a huge surprise which changed his life for the better.Hopefully, Asher was saved by the so-called 'bloodthirsty monster' duke and brought to his mansion to babysit his spoiled 10-year-old little sister who threw tantrums declaring she wants Asher to pat her head and comfort her.Just to babysit this adorable, little girl. He was safe. His secret was also secured within himself.Thanks to that chaotic sister and brother, Asher's life slowly took new turns and continued with almost no obstacles...till some point.The surprise?The duke happened to have some kind of a 'strange' illness that had no cure.Not long after when Asher discovered it, he ended up becoming the perfect cure for his illness.But how?-Remember? He was 'special'!Where would his specialty as an omega lead his life to?What kind of mysteries would he have to encounter with this duke wishing comfort from him? Will the duke's 'strange' illness ever get healed?How would their story flow to that perfect happy ending with the twist of love landing in the middle of their 'just a deal'?