Nizellin's activites

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As the Kingdom of Elpasa fell before the blade of the Empire's greatest hero, in order to survi...

Only in death did I realize the meaning of my life. Daehwa Kim is a piano prodigy who drops out of a...

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Compared to his genius older twin brother Jeong Jaeui, ex-soldier Jeong Taeui thought he was average...

This is just a list of manhwa/manga which has main character/s who gained a second life in the modern world setup.

Main Characters: Reincarnated/Second Life
Settings: Modern Society

The list is in no particular order.
Feel free to suggest anything in the comment section.