MTL - Immortal Mortal - ~ Thank you, gave me a book of 0 League

Will you forgive them or seek revenge? Forgiveness and revenge are, after all, the two inevitable outcomes when faced with betrayal—rather, the two sides to behold of the same coin. No matter how many times forgiveness surfaces, revenge is equally likely to occur.This is the tale of a man who has endured countless betrayals throughout his life. One might even say he's been betrayed by his own fate. Yet, he has always chosen to forgive and move forward with a cheerful smile. Revenge never really occurred to him— not even once.However, his life took a dramatic turn when he gets involved in a tragic accident, meeting a miserable end. But fate had other plans, and he was reincarnated in a different world. With his newly acquired body, he starts his life as a Mage Class Adventurer, only to face the dark reality of the world. The atrocities he witnessed—enslavement, smuggling, trafficking, and so on—were nothing but the tip of the iceberg. The Dark Morals of the world remained untouched.What secrets lie hidden? What darkness shrouds this world? One must join him on his journey to discover the truth. As he continues surviving in this new world with certain ambition and purpose, he also acquires a 'System' to enhance his potential. With each level and skill upgrade, he conquers the chaos and earns a title no one ever will ever be able to attain.[“Do read if you feel like reading my creation. Your support is what gives me inspiration to carry on”— El Sandra.][Note: My novel contains violence and harmful events. Reader discretion is strongly advised]

Mark hatched out of an egg one day, reincarnated as a demon!His body was as strong as iron, instincts capable of noticing a silent fly multiple meters away. Eyesight sharp enough to see the small holes in an enemy’s clothing.Moreover, he also had a system.[Soul Devourer][Eat souls to grow stronger.][Mind-type Demonic Tricks have been derived out of your demonic bloodline!][Heart Input!][Input unsolicited thoughts in an enemy's heart and influence them!]Mark took a deep breath.How can he allow himself to live a mediocre life after being given this second chance?Now, he wanted it all!Women, wealth, power, status, and even eternal life!His ambition was set, his heart was on fire. A demon had been born.

Super soldier Su Chen, returned to the city and returned to the city, set off all directions! The king of soldiers that once famous the world, let everyone be convinced!

- Description from xbiquge

Oosuki Masato is an ordinary high school boy who is magically transported to an alternative world, but for some reason his doting, over-protective mother comes along as well.