Oh My God! Earthlings are Insane! - Chapter 488: Fight! The Real Monster Civilization!

System Notification: Your King of Passivity talent was activated through killing the Elit Demon Clan Warrior. You have automatically received the Critical Strike (Passive) Skill.

What? I got another passive skill.

I have way too many skills, I can barely see the end of my skills panel.

I need to be low-key, low-key.

This is the story of a game grinder who used his passive skills to destroy legends.

Vahn was an atypical youth. Due to a rare mutation, his blood had the potential to target and attack ailments within the human body. Touted as a universal cure, people had elevated his status above the norm and given him the classification "Panacea". In the media, he was hailed as a great hero who would usher in a new era or human wellness. However, behind the scenes things weren't so bright. Being a unique individual, Vahn spent his entire youth locked up in a lab with various scientists and research teams using his body and blood to perform endless amounts of experiments. The only solace in his suffering was the various anime and manga made available to him between experiments. He often imagined himself as the protagonist in a world of his own, finally in control of his own destiny. For years he nurtured this desire, until at the age of 14 he died when an organization had tried to kidnap him from the lab...

Jack died an embarrassing death and was reborn as Tony Stark in the Marvel Multiverse. He found out that the reality he was reborn in was a mixture of The Marvel Ultimates, other Comics, and a little bit of MCU, which wasn't good news for him. Too many enemies and unknowns. No way of knowing which event will happen when. No way of knowing who is good or who is bad.Thus begins Jack/Tony's journey of survival. He will do anything to survive and achieve his goals, no matter the cost.---Before you ask> No, this isn't a part of any previous series. This is a new ff.---MC isn't a saint. He'll do anything for survival. And MC won't be OP in battle from the start. He'll struggle and learn from failures and improve, for the first part. And this is a technological advance world. Finally, DON'T COMPARE REAL LIFE TO A FANFIC AND THEN ARGUE.---[The cover picture is AI-generated.][I don't own DC or Marvel except for my own OC][Harem? >Yes.]----Support Link:-https://www.patreon.com/XcaliburXc [15-17 advance chapters]----------

Failing in his job hunting, Sanada Kyouichirou was hopeless in this society. When kyouichirou had thrown himself towards the bottom of a cliff. When he woke up his body had returned towards when he was in fifth grade of elementary school. He did not want to have any regrets in this life so he had decided on building up an harem in this second life.

The elder sister that he admired, a senior and president of the student council at a school for rich young girls, a strong minded upper classman at school. The poison fang of Kyouichirou who had pretended to be a innocent child attacks those girls.