HxH: God of Choice System - Chapter 15: Icicle

Reborn into an ancient world of hardship, Chen Qing became a scholar who toiled through ten years of cold study, finally achieving fame on the golden list. Just when he thought he'd join the ranks of the literati, marry a beauty, and reach the pinnacle of life, he suddenly found himself entangled in a bizarre and fantastical incident.It was also at that time that he discovered this world was far from simple—there were man-eating demons, heart-bewitching devils, and even the legendary immortals who could live forever but were exceptionally strange!What he found even more inconceivable was... these deadly things seemed... to all have been designed by himself!!!

The wrong way to act as a villain no.1: Get rid of the protagonist while he still hasn’t become powerful.

The wrong way to act as a villain no.2: Take the limelight from the protagonist at the key moment.

The wrong way to act as a villain no.3: Make the protagonist fall in love with you, thus making him incapable of completing the final step – eliminating the major villain.

Han Changsheng, Head of the Demonic Cult, is the major villain who’s employed all three incorrect methods.

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As the leader of the first Demonic Cult in the underground world of martial arts and cultivation, Tianning Cult, Han Changsheng carried on the long-standing tradition of an unstable mind and a refusal to seek any treatment.

Originally, his life should have passed by quickly and simply, but one day he kicked a descended Immortal Lord off a cliff. In order to make up for this mistake, he must aid the Immortal Lord in ascending back to his position… but why does this mistake keep growing? Hey, lao zi doesn’t need you as a younger brother, you should look for An Yuan! Don’t chase after lao zi, you’re destined to be An Yuan’s wife! Don’t worship lao zi as a martial arts lord, lao zi is the genuine leader of the Demonic Cult! Hey, Hey lao zi is obviously the major villain! What the hell are you doing?!

- Description from Novelupdates

A mysterious teenager who had lost his past, awakened in Tianlong Continent. Mistaken as the Ye family’s Son, he used this identity to observe this chaotic world and to search for his past self, but only to find an inevitable and terrible fate, therefore he indignantly laughed at his destiny, and revealed his prowess to rule the lands under the heavens.

A side story series featuring the girls of Kyoukai Senjou no Horizon.