Dungeon ni Deai o Motomeru no wa Machigatte Iru Darou ka - Vol 3 Chapter 4.2

He, without doubt hates her.
What did she do to deserve his hate?
The person who she treated well like a brother did not even bother to notice it...

Years passed…

He needs to get married.
He needed a wife.
So she offered herself.
It was a marriage that will benefit both parties he said.

In his previous life, because of a cultivation technique that he could not cultivate, Sword Genius Ling Dao was hunted down by the Purple Vine Holy Land multiple times. Not long ago, the Purple Vine Holy Land killed many disciple of Ling Family s. In the end, he was still suppressed by a peerless expert at the bottom of the Divine Sword Mountain. Day and night, he suffered the pain of ten thousand arrows piercing his heart!

After his reincarnation, he was Crown Prince Xiao Yao. However, because of the Sword Qi in his body, Ling Dao had become extremely weak, and was unable to cultivate. His mother had left him when he was five, in order to find a cure. His father had barged into the Celestial Dragon Forbidden Area for him a year ago and still had not returned.

The King Carefree Palace had been annihilated, Jiang Zhong fled a thousand miles away with him, and Jiang Zhong, on top of the Celestial Sect, had been humiliated … The misfortune that followed after, was that it accidentally helped him to open the peerless Desolate Immortal Slaying Force cultivation technique, and from then on embarked on a journey that defies the heavens! ” It won’t be long before I make them regret their actions! “

- Description from Novelupdates

After a tear in reality pulls Kagari Shuya into a white room he discovers a futuristic interface for reincarnating in a different world. After looking through the different races and skills he unlocks a new race, Lucivault, a type of vampire with none of its characteristic weaknesses. All set to start his life in a new world, Shuya is confused to discover that he is enveloped in darkness. As it turns out something went wrong when he was transported and instead of appearing where he was supposed to, he appeared in an underground cave. Shuya faces untold dangers, runs for his life, before finding his way out of the underground world. After escaping he meets his Shishou and begins to learn to fight with a spear. There is also a cute black cat named Rollo.