Radioactive Evolution System : Starting As A Tentacle Monster
This is an incredibly strong foundation for a synopsis. The "deity sneezed" trope is a classic, hilarious way to explain a transmigration gone wrong, and tying the System's rage-baiting personality directly to his suppressed intrusive thoughts is a brilliant narrative engine.
Here is the fully polished, webnovel-optimized version of your synopsis. It hits all the right algorithms, establishes the ecchi/comedy/gore tone immediately, and lays out the monetization structure cleanly.
Synopsis
Klaus died at twenty-six on Earth—struck by a freak bolt of lightning before he could ever feel a woman's touch. A passing deity took pity on a man who spent his entire life suppressing his intrusive thoughts. The plan was simple: grant Klaus a glorious Mage System and transmigrate him to a pristine, magical Mana World.
The reality? The deity sneezed.
Misfired across the multiverse, Klaus crash-lands in a brutal, radioactive post-apocalyptic wasteland. His pristine magical interface absorbs the toxic ambient radiation and violently mutates into the [Radioactive Evolution System]—a corrupted, glitching AI that exists solely to rage-bait Klaus into finally acting on his most unhinged intrusive thoughts.
System quests are no longer about saving the world; they are generated directly from his darkest, most degenerate impulses. Klaus isn’t trying to cure the nuclear winter or save the underground slums. He just wants a safe corner, a warm meal, and to finally lose his V-card. If he has to become a Lovecraftian horror to get it, so be it.
To survive, Klaus must evolve. But because of the System's mutation, he needs a biological base. He is forced to slaughter terrifying wasteland monstrosities just to harvest their genes. Even then, the System's RNG is chaotic, spitting out three completely randomized evolution paths—and he can only choose one permanently.
We are talking about highly questionable bloodlines here, like:
[Rank A - Great Radioactive Antarctic Kraken]: Vomit acidic ink, impale enemies with razor-sharp appendages, and utilize highly invasive tentacles for... closed doors activites.
[Rank B - Bone-Dissolving Cobra]: One bite turns your enemies into a puddle of aggressive soup.
[Rank B - Vulture Corpse-Eater]: Consume rotting, irradiated biomass to stack permanent stat buffs. Disgusting, but highly efficient.
Armed with horrific sea-creature mutations and a System that aggressively mocks his lack of a sex life, Klaus is about to become the most terrifying, unpredictable predator the wasteland has ever seen.
------ GIFTS = BONUS CHAPTERS & MORE -------
Massage Chair = 1 Bonus Chapter
Dragon = 2 Bonus Chapters + Special Thanks Note for the sender at the end of the chapter
Castle = 3 Bonus Chapters + Special Thanks Note for the sender at the end of the chapter
Spacecraft = 3 Bonus Chapters + Suggest the Next Bloodline + Special Thanks
Golden Gachapon = 4 Bonus Chapters + Choose the Next Bloodline (Create custom traits and skills as well!) + Special Thanks
Join My Discord: https://discord.gg/NUyXnUV5N