The World seems Realistic but Why do I have a Leveling System?

Inside the Trial Tower.

"Hup!"

Sheila punched at the slime jelly-like body, and it shivered for a moment before turning back into regular water as the force of the punch cracked the core inside it.

『 You have killed the slime LV.5! 』

『 You have gained experience! 』

『 You have completed the daily quest! 』

『 You can exit the Trial Tower, Do you wish to proceed? 』

『 Yes/No 』

"..."

Sheila looked around her surroundings and was about to proceed on leaving the Trial Tower but come to a halt. She decided to stay for a while and thought in her mind clicking on no, which make the window disappeared from in front of her face. She wonders why it always asks whenever she wanted to leave or not instead of just teleporting her out after completing the quest.

Sheila, as a gamer girl, she could feel her spider-sense tingling just like the moment when she had found clues for a hidden quest in RPG that she played. She had always believed in her sense, and in the end, her spider-sense was right on the mark. But that was in the game, and of course, the game developers won't make their game unbeatable unless they were sick in mind.

But this is a reality, a world where science ruled, and the supernatural was merely a myth. Ghost or whatnot, she didn't believe in such a spiritual existence and never seen any of them in her entire life. But that was her previous thoughts before she got this leveling system. The current her believes that supernatural did exist, as shown right in where she is.

While she was pondering about all that, she was not wasting her time being idle either. She was cautiously moving around, looking for some clues. After a few minutes of going all over the place, she didn't find anything that could be a clue and decided to slay all the slime that already respawn after being killed by her. Perhaps, that could be the clue.

Sheila wasn't worried about not enough food or water to drink as she was well prepared before coming in, even more than the past. The money came from the bank card given by her mother at her 16th birthdays. She had only used it to either buy games or dining outside with her best friend. She went to the supermarket and bought all kind of foods such as bread, snacks, frozen food, etc.

Before getting inside the Trial Tower, she has done some little experiment on inventory. Although her culinary skill couldn't be said to be the best, it was not bad either. She had learned it from her mother whenever she helped her with house chores. She tried putting the steaming hot food into the inventory and wait for a few minutes before pulling it back out and surprised, the food was still steaming hot.

Her experiment was a success as she had figured out that the time inside the inventory was frozen just as she had expected.

"Hap!"

The powerful force of her punch slews another slime. Sheila wipes the sweats off from her forehead with the dirty shirts from the inventory. So useful, she thought.

When she had killed a single slime after completing the daily quest, for some unknown reason, she didn't gain any experience from it. Initially, she had thought due to her level is higher than the slimes, it makes perfect sense that she didn't get any experience from lower-level now. But when the count reached 20, she was still unable to get any exp.

From the experience that she had played RPGs, even when her character level is higher than the monster, she could still gain exp from it, although just a little. Yes, that was a game, and this is not, She knows. But Sheila couldn't be helped but try to compare everything with the games she has played.

It was not her fault that the system gives off the impression that makes her think that she was merely playing a virtual game. But of course, she could feel that everything is real, including the power she feels keep getting stronger the more she leveled up.

"Hmm?"

Maybe it was because of her sharp sense, but she could sense a powerful presence ahead of her. The mere presence already gives her cold sweats even from this far distance. She wanted to run away right away, but she's also curious about what kind of being is letting out such a powerful presence.

『 You can exit the Trial Tower, Do you wish to proceed? 』

                 『 Yes/No 』

After pondering hard for a minute, she decided to continue on her path. Before going after that powerful presence, she distributed the point that she acquired from leveling up twice and keep the remaining five.

『 Sheila LV.10 』

『 HP: 80/80 MP: 100/100

—STR: 20 —INT: 20

—AGI: 13 —VIT: 16

—LUCK: 10 AP: 5 』

『 Due to the increased in Intelligence reaching 20, You have acquired passive skill: Mana Sense! 』

『 Mana Sense LV.Max 』

『 You can feel the mana flowing through the air and all the surrounding. 』

『 You have acquired the active skill: Presence Detection! 』

『 Presence Detection LV.1 』

『 You can sense presence from the flow of mana of the surrounding. 』

"Haha..ha... I knew I was going to get something when the stats increased to 20, but I didn't expect this much at all."

Sheila laughed sheepishly. After getting the passive skill Mana Sense, she really could sense something flows in the surrounding air of Trial Tower. She even feels the mana inside of her. What a jackpot! She didn't expect to get presence detection skill too! Perhaps, due to her previously sharp sense, getting assimilated with the mana that she could sense a presence even better.

The scary presence ahead of her is giving off a danger alarm to her as if telling her how dangerous it is; it is even more so after she acquired the skill. The scary presence diminished a little, but that's it, she still didn't think that she could beat it.

"Well, I just wanted to check out what was that scary presence..."

Sheila carefully and cautiously walked ahead of her, but what she saw give her a surprise. A jelly-like body at the size bigger than human adults stood ahead of her gaze. She didn't know if she was lucky or unlucky now because the slime in front of her has detected her presence when she gets close to it.

"I want to leave!"

Sheila quickly shouted in a hurry, and a system notification appears in front of her.

『 You are unable to exit the Trial Tower! 』

"What— why?!"

She suddenly could feel a bad premonition creeps in after seeing that notification. What appears next assured her of it.

『 Special Quest has been created! 』

『 Kill The Boss! 』

『 Kill the Slime King that stood ahead of you.

Reward: Lottery.

Punishment upon failure: Death. 』