Do Any Light Novels Explain Bio-Toilet Mechanics?

A collection of passionate encounters, forbidden attractions, and complicated relationships. From former lovers reunited by fate to rivals caught in unexpected temptation, each story explores desire, emotion, and the choices that change lives forever.

After transmigrating into the apocalypse, he acquired a Super Fusion System.Two Level 1 Zombies can be combined into a single Level 2 Zombie, the combined zombie would also be completely loyal.The higher the zombie’s level, the better it looked.The zombies also possessed unique skills and techniques. Some are heaven shattering and groundbreaking, with the ability to take the life of any adversary.In fact, the zombies will even continue to spawn new zombies every day.

Willa Roane dies the same night she catches her boyfriend in bed with her sister. Instead of waking in peace, she’s dragged onto a ghostly bus and informed—by a mocking intercom—that she’s entered the Survival Game: a twisted show where the dead are thrown into lethal, terrifying worlds for the cruel amusement of an unseen audience. The rule is simple: survive each round… or your soul is erased forever. Her only ally is Corvin Thorne, the devastatingly beautiful stranger who yanked her off the road and onto the bus. A hybrid vampire–werewolf with a past soaked in blood, Corvin is bound by a wicked secret contract to keep Willa alive… or forfeit his own soul to the game. As they descend deeper into the nightmare realms—from a monster-ruled Dracula Castle to ruined neon cities—Willa realizes she is the key. The deadly worlds are twisting around her darkest fears and fantasies, turning her own horror stories into elaborate traps. She isn’t just a player; she’s the author of the chaos. And the man sworn to protect her may be the only thing she can’t control. Now Willa must rely on the dangerous man she’s falling for, a man who swore he would never love again. The heat between them is undeniable, but as their bond deepens, it’s impossible to tell which is more dangerous: the monsters hunting them… or the love that could destroy them both. Love might be beautiful—but in this game, it’s never sweet. It’s a weapon, a weakness, and the one thing that might rewrite the rules of Hell itself: desire. ---

When the apocalypse came, she lost everything. Starving, hunted, and desperate, she trusted the one man she loved… only for him to betray her in the cruelest way possible. He stole her last supplies to please another woman and left her to die in a sea of the undead. But death wasn’t the end. She woke up days before the world collapsed. After cutting ties with her ungrateful ex and his parasitic family, a mysterious voice awakens in her mind, LUS, a Level-Up System designed to help her survive the coming end. With knowledge of the future and a system guiding her every move, she begins to prepare. She stockpiles resources, builds a base, and learns how to fight back against the horrors that once destroyed her. And when the apocalypse arrives again… she’s ready. But survival isn’t the only thing waiting for her in this new life. A silent killer who watches her like prey. A manipulative genius who wants to unravel her secrets. A gentle protector who sees the girl she hides. And a dangerous man who thrives in chaos. As the world burns and power shifts, they’re all drawn to her, each with their own motives, each with their own darkness. Even her past refuses to stay buried. Because now, the man who once abandoned her is back, broken, desperate, and begging for a second chance. Too bad she has no time for regrets. Not when she’s busy rising to power… and building a kingdom in the ruins of the world.

After Noah's death, what greeted him was an AI system calling itself Black, offering him a job working for the World and Soul Management Bureau.  He has to travel to many different worlds, taking over an identity of some unfortunate soon-to-be-dead dude, and live out the remainder of his new life there however he wanted. Easy-peasy! ...Right? ...Ok, sure, there are a few small kinks here and there... like terrorist attacks, murder plots, zombie apocalypses, and the like... but one should always look at the bright side! Noah: "...Blackie, is it just me, or is this good brother of mine looking at me like a hungry wolf seeing a juicy piece of meat?" (°△°|||) Black: "Don't worry, host. He is just a bit excited due to nearly losing his life back there. You know, adrenaline." (¬‿¬) Noah: "…are you sure that's what's really going on here?" (っ °Д °;)っ Black: "Absolutely!" (≖‿≖) … ~ Many worlds later ~ Noah: "This secret mission that you can't tell me about… it can't possibly be to get fucked by the least appropriate target?!" (°ㅂ°╬) Black: "Of-of course not! Ho-how could that possibly be, eh?" (; ﾟ 3ﾟ )~♪ ML: Right, right, that's just a very (not so) coincidental bonus. Ψ(╹ڡ╹ )Ψ 💠 Author Note 💠 * SSC has long arcs. Each world is a fully-fledged novel on its own. * Don't let the summary (or the cover) fool you! While SSC does have an occasional explicit smut, it is primarily a fluffy and hilarious romance! * Pairings are one-on-one and taboo-ish. (E.g. hired assassin and his target, monster tamer and his tamed beast, master and disciple, siblings, brothers-in-law, etc.) * More info in the info chapter Author website: lucypandora.com Support the author on ko-fi: ko-fi.com/lucypandora Discord: lucypandora.com/discord

I picked up a system with my sister. The system said only one of us could bind to it, and the other could take twenty million dollars. My sister shoved me aside and chose the money. Ten years later, she squandered everything and ended up homeless. Relying on the luck the system gave me, I excelled in my studies, climbed the career ladder, and reached the peak of my life. Driven by jealousy, my sister stabbed me to death at my birthday party. When I opened my eyes again, I was back to the day we found the system. This time, she said without hesitation, “Luck is too intangible. I’ll take the loss. You can have the fortune.” I knew she had been reborn, too. What she didn’t know was that the luck granted by the system always came at the cost of one’s lifespan.