Hitman with a Badass System - Chapter 43: Base of Operation I

Our straight (?) bottom woke up ten years into the future and found himself on the bed of his childhood friend… At the start, the bottom was shocked to his very bones, but he soon quickly accepted this premise and found the whole situation to be rather amusing. Precisely then, the bottom once again went back to his timeline — back to when he and the top were just platonic childhood friends.

Landmines include but are not limited to: Sweet & naive bottom, a president story, logic is dead, slow-progressing romance, the protagonist’s name has too many character strokes, the names are hard to pronounce, too many gay characters…

- Description from novelupdates

Max Winchester suddenly found himself in the world he hated the most, Xiao Bai novels.Not only was he not the protagonist, but he became a villain, and the worst thing is, unlike other Villains, he was not transmigrated at the beginning of the novel but rather at the end point of his arc.His death was already decided; the Protagonist had already firmed his foothold in the city.The most important thing for the villain is their family already pretty much disowned him; the sisters who used to dote on him were ignoring him.His business was in a crisis as he was just days away from declaring bankruptcy as his capital chain was broken.He found himself standing in front of his childhood sweetheart, who came to him to break off their engagement.When he was in the desperate situation, the compulsory golden finger of every traveler popped in.[Ding! The Counter-Attack System is being bounded][Ding! Protagonist attack on host detected...Counter-Attack is being triggered....][Ding! Congratulations to the host for gaining {Absolute Dodge}...][Ding! The protagonist gaining strength is detected...Counter-Attack is being triggered....][Ding! Congratulations to the host for receiving the SS+ Calamity rank power base....][Ding! Protagonist attacking your company detected....Counter-attack is being triggered....][Ding! Congratulations to the host for receiving 1 Trillion UC market value company....Congratulations to the host that Protagonist's most loyal brother who helped him in attacking your company stepped on shit and died....][Ding! A protagonist's childhood sweetheart hatred towards you is detected...Counter-Attack is being triggered....][Ding! Congratulations to the host for receiving +100 (Only one) Favorability of Protagonists childhood sweetheart....][Ding! Protagonist trying to blackmail your sisters detected....Counter-Attack is being triggered....][Ding! Congratulations to the host for receiving +1000 (Not even death do us apart) favorability of his mother....Congratulations to the host for receiving {Harem protection halo}....Congratulations to the host that the Protagonist lost his PP right....Congratulations to the host for the Protagonist lost half of his mind....]And so he goes on his relaxing journey of the Counter-Attack.

Who, in the ancient mythology, held an artifact and killed the first emperor of the human race?

Who, at the beginning of ancient times, closed the gate of the God Realm, Jedi Tiantong?

Who set a lifespan limit of only one hundred and thirty years for the people, and even the Great Emperor was not spared?

Who, turned into a black hand that covers the sky for eternity, shrouded the world?

…

Yang Shou on Earth: “Yes, yes, I did it all, I just want to live.”

- Description from novelbuddy

Eren Idril died as an old, decrepit, and piss-poor adventurer by the maws of a D-Rank monster. He had a lot of unfulfilled dreams and desires that couldn't see the light of the day after the light in his own eyes died down.

But fortunately for him and unfortunately for the world, that wasn't his end. Eren was somehow dived back in time when he was a mere teen, attending Lionheart Academy for adventurers.

When life gives him a second chance, Eren decides to exploit it to its fullest. Experience his vile deeds as he partakes in them without feeling the slightest bit of hesitation.