˚◞♡Action NO romance/NO harem/NO ecchi here! - ଘ(੭ˊ꒳ˋ)੭✧˚◞♡　　　 　

As life gets harder, Ian pushes his emotions away and resists.
His father's violence and debts increase ... Thee misfortune continued and his body became increasingly numb.
accidentally he walks through an illegal fight and receives an offer.
"If you get in the game, I will give you all the money on this floor."
His survival period begins, where he must survive in an illegal fighting arena

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Author of dark mortal

After being held in disdain and having his life put in danger, an orphan from the Demonic Cult, Cheon Yeo-Woon, has an unexpected visit from his descendant from the future who inserts a nano machine into Cheon Yeo-Woon's body, which drastically changes Cheon Yeo-Woon's life after its activation. The story of Cheon Yeo-Woon's journey of bypassing the Demonic Cult and rising to become the best martial artist has just begun.

A writer who has failed national exams is recruited by a martial arts master and tasked with recording his life in a book. Through their journey, Son Bin meets many great people and soon finds himself on the same path as the master, to become the king of martial arts.

“Castle”, South Korea’s omnipotent crime syndicate.
One man returns to Korea in order to topple the absolute stronghold that is “Castle”. Kim Shin, the Korean-born Russian killer named “Amur Tiger”. He comes back to the crime-ridden city of Hoe-Am in accordance with the last will of his mentor, Kang Min-Seong. Kim Shin and his comrades put their lives on the line as they head for the final showdown…

Follow Klein as he finds himself entangled with the Churches of the world—both orthodox and unorthodox—while he slowly develops newfound powers thanks to the Beyonder potions. Like the corresponding tarot card, The Fool, which is numbered 0—a number of unlimited potential—this is the legend of "The Fool."

When I wake up, everything is a mess. War? Extraterrestrial invasion? Whatever it is, I just need to take personal revenge.

A good read. I recommend it!