When the Doctor Uses A Hack - Chapter 1945 - 1951: Vaccine Progress at 100%!

In the 5th year of Konoha’s founding.The battle between Hashirama Senju and Madara Uchiha at the Valley of the End had come to a close.In order to treat his elder brother’s injuries, Tobirama Senju resurrected a medical ninja from ancient times, hoping that this individual could prevent the injuries from shortening his brother’s lifespan.This medical ninja’s name was Emiya Shigen.

In a world ruled by ancient powers and hidden forces, Caelen was just another face in the crowd — until a mysterious encounter with a radiant woman awakened something deep within him.The Lust System.With it, Caelen begins a path of relentless evolution. Every woman who bonds with him fuels his growth — not just in strength, but in influence, power, and legacy. But these aren't passive followers. They're warriors, leaders, and legends in their own right — elf queens, demon generals, angelic saints, dragon-blooded fighters, and more.Each woman brings unique abilities and ambitions of her own. Together, they don’t just stand beside Caelen — they fight, conquer, and shape the world with him.As old factions tremble and new enemies rise from sacred temples, fallen clans, and forgotten bloodlines, Caelen must lead his allies through a crumbling world, forging a new age in fire, desire, and war.This is not just his rise.This is their revolution.

Song Xuanhe transmigrated into a book called “The President’s Seven Boyfriends”. He became the President’s cannon fodder ex-boyfriend, Song Xuanhe.

The Song Xuanhe in the book: 180 cm tall, so attractive he would trump over even the hottest celebrities, three generations of family in business–a very appropriate rich third generation.

It wasn’t a loss to transmigrate into this kind of person. It was just that this was a rebirth story.

The Song Xuanhe in the book abused the male lead 800 times and had even indirectly caused the male lead’s death. Faced with the reborn blackened male lead, his fate was obvious–not only did he reach rock bottom, he even died without an intact corpse.

Right now, he had become the cannon fodder ex-boyfriend that was foreordained to die without an intact corpse.

——

System: Don’t you think that the male lead has been a bit strange recently? It’s like he’s plotting something in the dark.

Song Xuanhe: Plotting how to kill me?

System: No, plotting how to eat you.

——

Song Xuanhe, who was lying on the bed with an aching waist, pained back and legs suffering from cramps, cursed the System 800 times–what happened to the male lead being a shou?!

Emphasis: Xiao Yuanmu is the gong! Xiao Yuanmu is the gong! Xiao Yuanmu is the gong! Moreover, the big shot has always been a gong! Spoilers only up to here!

The heck? l got reincarnated as a prince in another world!I have a system as well?[Choose class][Fiend Or Human Class?]Fiend Class.Choose the class from below.[Milf Manic][Blood Kin Copier][Plunder Sucker][10X Milk Man]Yeah I choose to become the strongest!On the other hand, why is my maid so cute?“My prince~ not there!”