Harem Overlord

"I still can't believe that she was a girl but I guess I don't have that much knowledge on armored people since I never need to wear one." Kai sighed as he gazed at the sky while sitting on top of the ice palace.

After nearly escaping the elemental rulers with his life, he had somehow managed to come to the frozen realm and was now a special member of the ice palace.

"You have a bad habit of sitting the and gazing at the sky." He suddenly heard as he turned to look at Mia who was hovering in the air behind him.

"I can't help but look at the sky at night since there is nothing else to do. Anyways, what are you doing here?" Kai asked as Mia sighed at his words.

During his time at the ice palace, he and Mia had grown quite close to each other. Though Mia was quite busy learning about managing a kingdom, she would still make some to chat with him.

"I am here cause I found what you were looking for." She finally replied as Kai was suddenly interested in her words.

After his near-death encounter, Kai had decided to lay low for a few months. But now that the fiasco was over, he decided to get back to his job of healing cursed people.

"Can you tell me about the person?" Kai asked as Mia nodded.

"Rumors have been spreading throughout the realms that there is a person who has the access to the world's greatest library. Many scholars and other people are looking for her but she is impossible to find. Because of that rumors, are spreading that she is under a curse that she can't meet any other human. I don't know if you can do anything about this." Mia replied as Kia just smiled.

"It's still something that I can look into. Anyways, I will see you later." Kai replied as he flew away and left behind a sighing Mia.

"I said that I will do something about this but how am I supposed to find a person who supposedly cannot meet another human?" Kai asked himself as he teleported outside the realm with a curious expression.

Since the frozen realm had heard these rumors, this could mean that they had started somewhere on the two nearby realms.

"Hmm, would a person who no one could see try to remain hidden or would she try to attract attention by doing bold things?" Kai thought to himself as a thought suddenly hit his head.

Maybe the person could actually meet other people but she deliberately didn't do it. After all, if you owned the world's biggest library. You would probably spend most of your time reading the books inside it.

"So I just have to find its entrance." Kai said with certainty but it turned out to be a very difficult thing.

He spent hours investigating the frozen realm and the lava realm but couldn't find anything. As for the moon realm, he didn't want to go there since that place was currently at war.

As a last-ditch attempt, he spread his spiritual sense near the three realms has his spiritual sense suddenly got rebounded.

His eyes narrowed as his surroundings started to change and he appeared in a huge room full of shelves.

The shelves were made from shiny wood and had thousands of books on them. Kai couldn't even manage to calculate the number of books this place had.

"Huh, how did you get here?" A confused voice asked him as he turned around to see a woman looking at him with curious and confused eyes.

The woman had faded black hair with shiny bright pink eyes and was wearing quite a revealing dress.

It formed a cleavage of her huge breasts and highlighted her eyes.

"I just entered this place when my spiritual sense was rebounded against an unknown thing." Kai replied as the woman's eyes widened.

She moved forward and was now standing half a feet away from Kai. Her eyes slowly traveled over his body as she examined him.

"What is so special about you that this place let you come here?" The woman asked herself as Kai just shrugged. The woman sighed and stepped back.

"Now that you are here, I should probably tell you that you are stuck here till you die." The woman revealed as Kai's eyes widened.

"My name is Esmeralda and I have been here for a very long time. I just appeared in this place when I was sixteen and from then to now, I have read almost every single book here." The woman, Esmeralda introduced herself as Kai sighed and raised his hand forward.

"My name is Kai." He introduced himself as Esmeralda nodded.

"If you had that much time on your hands, why didn't you read the remaining books?" Kai asked as Esmeralda gave him a frustrated smile.

"The problem is that I can't read the remaining books." She replied as Kai nodded.

"Let me give you a tour of this place." Esmeralda said as she and Kai started moving around.

She mostly told him about different sections of the library that were dedicated to particular things.

Some of them contained information on various spiritual beasts while some had information on different species of plants.

But the most interesting one was the book section dedicated to powerful techniques and skills.

After roaming around the entire place, Esmeralda lead him to a door that as she opened it and both of them entered the room inside it.

The room was a fully furnished wooden room with a single shelf standing straight at the other side of the room.

The shelf contained ten books, half of which were black while the other half were white. Esmeralda stopped Kai from moving forward as she took out a small piece of blank paper from her clothes and threw it forward.

The blank piece of paper touched a barrier and was blasted to shreds as Kai's eyes narrowed. 

"The reason I can't read all the books is because of this stupid barrier." Esmeralda muttered as Kai slowly moved forward and touched the barrier without his hand.

And to Esmeralda's shock, his hand passed right through it. It was as though the books were pulling him towards them as he moves forward towards the shelf and grabbed a black book.

"The Sins guide to resurrecting mortals." He read out loud as he sat down and started reading the book.