The Great LOL

"Listen to me carefully, little sis, from now on you will forget about everything that happened here and after today, I'm sure you will get a new life free from all concerns."

After that and with flick with his index finger, he taped in the forehead of his little sister, who was staring at him with blank look on her face, After some time she lost all her consciences, shutting her eyes calmly.

"Youngster, don't worry about her, I will make sure she will get the best life any girl will dream of, after all she was my lucky charm."

Putting his little sister on the ground, with calm expression, shifting his eyes that filled with hatred and murderous intent, to the being who forced him to this situation. In the end he just greeted his teeth saying.

"Now that you get what you want, let me tell you that, one day you will regret everything that happened here for the rest of your life."

What happens next? Read the novel
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The story takes place in a modern world that its like ours world in some aspects and developed into another way.
The MC is not cold-blooded so maybe you will find him a little boring.
Also, English is not my primary language so If you spot any spelling mistakes or grammar errors, please let me know.
I don't own the cover.