watari-kun is about to collapse anime

The apocalypse arrives. Zombie hordes swallow cities, and starvation does the rest. Veteran soldier Leon Reed activates the Apocalypse Bunker System, beginning with nothing but a welding torch and a modified harvester, and breaks ground on Dusk Farm. While the rest of humanity stumbles toward extinction, he grows anti-toxin wheat inside bulletproof greenhouses and eats hotpot for dinner.Leon stockpiles supplies, raises walls, and draws in the talented and the desperate, upgrading his farm step by step into a steel fortress bristling with heavy weapons and piloted Titan mechs. The wasteland treats him as an anomaly. He treats the wasteland as farmland.

Three years ago, Zoey, the sole heiress of the wealthy Spence family, faked her death to leave behind Ian, the man she loved, believing it was the best choice for his future. Now Ian returns as the newly crowned top scholar, just as Zoey is forced to marry in order to secure her family's inheritance. She chooses her future husband by throwing a ball, and the ball lands right in Ian's hands. Using an investigation as his excuse to move into the Spence estate, Ian relentlessly pursues Zoey, risking his life for her, and even volunteering to marry into her family. Together, they uncover a conspiracy linking Zoey's uncle Frank to Prince Nathan. In the end, Ian gives up his career at court to become Zoey's husband, while Zoey saves her family legacy and earns royal recognition. After years apart, the two finally reunite and live happily ever after.

Kang Do-hyun chooses an ordinary life as a taxi driver to avoid inheriting his father’s family business. One day, he happens to rescue Cha Eun-seol, who is fleeing a chase and has accidentally taken the wrong medication. After a one-night encounter, they part ways and return to their separate lives. Four years later, a stylish CEO shows up with a child and proposes marriage to Do-hyun. After registering their marriage, Eun-seol faces pressure from her parents to abandon the child, but Do-hyun appears and protects both mother and daughter. As her company falls into crisis, Eun-seol attends a family banquet of Taegang Group—the most powerful conglomerate in Country A—to secure a 10-billion-won investment, unaware that the chairman is actually her husband’s father. At the banquet, despite pressure from her former fiancé Gu Jung-tae, Do-hyun’s father protects his granddaughter Kang Rumi and makes his presence known, yet he can only approach her as a “grandfather” without revealing his true identity. As time passes, Do-hyun and Eun-seol grow closer. However, after failing to secure investment, Eun-seol risks both her company and her board position by making a dangerous bet with her father, Cha Myung-hwan. At this critical moment, Do-hyun seeks out his father, accepts the responsibility of becoming the heir, and begins to take action himself. In the end, at a press conference, the capital and influence Do-hyun has prepared turn the situation around. Eun-seol not only saves her company but also secures full ownership, achieving both love and success.

Rose Frost, a corporate slave, transmigrated into a tyrant queen, activated a system, survived crises, and rose to rule the galaxy as empress.

Betrayed and left for dead, the talentless Xaden awakens the Spiritual Beast Supplier System—gaining the power to summon limitless, evolving creatures.From a single Slime that annihilates a Troll to commanding an army of mythical beasts, he crushes his enemies and shatters the Noble Family Alliance. In a world ruled by monsters, he alone will forge an unbeatable legend and rewrite the fate of the wasteland!

On my eighteenth birthday, Alpha called me up in front of the whole pack and told me to choose—one of his sons as my mate. Whichever I chose? He'd be the next Alpha. I didn't flinch. I picked Cayce, his eldest. The room went dead silent. Everyone knew I used to be stupidly in love with Kain, the younger one. I'd confessed at every pack dance. Took a silver dagger for him once. Cayce? Coldest, meanest wolf we had. Total menace. No one got close. But they didn't know the truth. In my last life, I was bonded to Kain. On the day of our Bonding Ceremony, he slept with Lena, my cousin. My mom lost it. Shipped Lena off to Duskwolf Pack to get bonded to their Beta. Kain? He blamed me. Paraded in she-wolves with Lena's same ice-blue eyes. When he found out I was carrying his pup, he made sure I saw him with every one of them. It was torture. When labor hit, he locked me in the dungeon. Blocked everyone out. My pup got crushed. I died hating him. Maybe the Moon Goddess felt sorry for me—she gave me a second shot. I came back. This time? I let Kain keep Lena. Didn't think he would ever regret it.

Working at an adult novelty shop, Nia Turner discovers one day that one of her customers is actually her husband, Marcus Hayes. Worse, he is having an affair with her half-sister, Arielle. Overwhelmed with humiliation, Nia drowns her sorrows in a nightclub, where she crosses paths with Leo Mitchell, a rich tycoon. After they strike a deal and enter into a fake marriage, true romance blossoms despite themselves, and Nia receives valuable support from Leo in her career. As she rises to become a successful CEO of Starlight Entertainment, both her personal and professional lives reach new heights of achievement.

The female lead, who has transmigrated as the Lion Queen, accidentally awakens her ability to read minds. She gets intimidated by the perverted thoughts belonging to the handsome beastmen who are offerings given to her by various tribes. In the end, she has chosen Dawn, a werewolf, as her mate. But a weretiger named Ignis is extraordinarily close to her for some reason…

Tyson Gray transmigrates into a beast taming world as the most humiliating thing imaginable: an F-rank little yellow chick, freshly discarded by the S-rank campus belle who wants nothing to do with him.What she throws away turns out to carry an ancient phoenix bloodline and a devouring evolution system that compounds with every creature he absorbs. He contracts with Esme Sutton, an E-rank beast tamer whose own contracted beast abandons her but whose potential is off every known chart, and the two of them begin climbing together. From small yellow chick to Cinder Hawk, to Inferno Crest, to Immortal Phoenix. Every opponent who looks down at them gets a front row seat to the correction.By the time the Demon Lord and the Wood family's schemes fully surface, Tyson and Esme are no longer something anyone can afford to underestimate. One phoenix, one tamer, completely undefeatable.

When Sophie Reed empties her every resource into a spirit summoning ritual, the universe sends her Leo Hayes,  a cheerful young man in catastrophically loud floral shorts. The crowd loses it. Lowest-grade Contract Spirit in history, they say. What nobody knows is that Leo carries the Menace System, a power that feeds on breaking rules, shattering expectations, and generally refusing to behave. The more absurd, the more impossible, the more wrong he is by every known standard,  the stronger he becomes. He slaps the original summoner clean out of the picture, casually evolves into the Divine-grade Contract Spirit World Heartthrob, and grins at a world full of rules he was apparently born to demolish.

In a world where combat classes reign supreme, orphan Fabron is branded a worthless failure after awakening the hidden class—[God-tier Breeder]. At his lowest point, he activates the [God-tier Breeding System], and everything changes. A dying stray kitten transforms into a lightning-wielding beast-eared maiden; a rescued little fox evolves into a nine-tailed enchantress.

Lily Avery transmigrated into a book and became the fifth princess, who would die tragically. To change her fate, she saved the future great demon beast, hid her ability, made the tiger beast and the phoenix her contract beasts, and became a tenth-level beast tamer who owned three SSS-class demon beasts. Crushing the enemy's conspiracy, taking down the villains, Lily eventually became the owner of Glorious Castle.

Tyson Calhoun transmigrated as a despised F-level Serpent. After activating a Devouring System, he evolved from Serpent to Dragon, overcame the apocalypse alongside humanity, and ultimately, devoured gods.

Liam Wayne is minding his own business when the apocalypse arrives and drops his entire residential complex, Greenhill, into a monster-infested forest with no warning and no exit. He awakens a survival system almost by accident, unlocks a point exchange store and the ability to merge spaces, and makes a choice that surprises even himself—he is not leaving anyone behind. He pulls together an unlikely team, a motorcycle queen, a firefighter built like a wall, a surprisingly lethal young girl, and more, exchanges system points for weapons and supplies, and turns a community of ordinary neighbors into something that can actually fight back. Seven days of relentless undead waves.Internal betrayals from the selfish and the desperate. And through it all, the quiet stubborn solidarity of people who decide that survival means nothing if they do it alone. Liam leads them through every wave, every threat, every knife in the back, and carves a path out of the wasteland for every last one of them.

Cast out by his parents' old friend, Sean White awakens as an SSS-Rank Insect Tamer, yet is scorned by all as worthless. His engagement is broken, his inheritance seized, leaving him with only a withered mantis. However, when the system activates and the insect nest descends, his forces multiply by one every minute! On the trial grounds, his endless swarm crushes former prodigies.Before his family's gates, void-borne insects tear through space itself. Only when the entire Clark family is shrouded in the shadow of his swarm do they realize in terror: this so-called "waste" has long held the power to overturn the world.

Phil Preston, a plain young man from modern society, suddenly awakens in the body of a feared Demon Lord from a cultivation tale with no spiritual power at all. At the same time, he is forcibly bound to a “Strongest Saint System” that promises one thing—do good, or die. In a desperate bid to survive, Phil halts the slaughter of the righteous sects and orders his subordinates to abandon violence and become farmers instead.

Dee Reynolds accidentally arrives in a new interstellar world and activates an exclusive system. Using the system's assistance and her own wit, she deftly resolves deliberate sabotage, stabilizes the political situation,discovers rare energy sources, and gradually seizes imperial power. After awakening formidable mental abilities, she becomes the empire's heir. Facing the vast opportunities of the stars, Dee harbors grand ambitions to lead the empire in conquering the cosmos and writing a new legend.

Transmigrated before the monster apocalypse, Xavier Lynn only wants to protect his younger brother and avoid past betrayals. He takes in a stray "dog" named Darkwind, only to awaken the Absolute Contract, a power that lets him forcibly tame S-class monsters. But when Darkwind swallows an A-class monster and his brother Jack extends SS-class tentacles from a water vat, Xavier realizes his "helpless" brother is terrifyingly strong.Meanwhile, the ex-girlfriend who got him killed and a corrupt military officer now have their greedy eyes set on his home.