watari-kun is about to collapse anime

A delivery guy Haven Ware dies in an accident and wakes up in a strange fantasy world where men are nearly infertile and women wield supernatural powers. Sold into slavery to twin sisters for a hundred copper coins, he discovers their true plan: to have him father a child in place of an aging, barren nobleman. This bizarre mission activates a mysterious "fertility system" that rewards him with power and skills the more affection he earns from the girls.

Spirit summoner Jane Mercer is fired from Granite University after her spirit beast dies. She accidentally summons an FFF-rank baby zombie named Rotter Willis from another world. Rotter is actually a Zombie King with unlimited potential, multiple evolution forms, and SSS-rank abilities.Together, they make a comeback, winning the National Mentor Assessment by defeating a hidden boss. However, they face repeated schemes from Sanova University’s Vice Chancellor Wilson Hall and the Perry family’s forces. Jane joins Aurelian University as vice chancellor, using unique teaching methods to lead the bottom-ranked Class 6 to triumph in the freshman trials. To participate in the Global Summit, Jane leads her team against Sanova University but encounters a death trap in the wilderness dungeon—designed by the Perry and Hall families—with massive high-tier bosses and an anti-magic field. In the crisis, Rotter tears off his corpse-restraining talisman and transforms into the Zombie King, turning the tide but losing control. Jane awakens his consciousness with a kiss, deepening their bond and setting the stage for future adventures.

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.

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.

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!

A cultivation game merges with reality, allowing humans to inherit their in-game cultivation levels. Some achieve Foundation Building and can shatter mountains with their fists. Others reach Core Formation and fly on swords. A few become Nascent Soul experts capable of moving mountains and cleaving rivers. The age of universal cultivation arrives! Meanwhile, Timmy Evans spends ten years gaming non-stop, clearing every dungeon and completing the ultimate challenge to become the server’s number one player. Now he inherits the strongest cultivation level of all—the Divine Overlord stage.

Hailed as the Federation's greatest mecha master, Dylan was betrayed by his disciple Loki at the Demon Abyss. To prevent the Ark Core from falling into enemy hands, he chose to self-destruct and sacrifice himself. However, Dylan did not truly die. Reborn in the body of a child named Howard, he carried the Ark Core within him, while two bonded mechas lay dormant in his soul. In this world now overrun by demons, Howard, armed with the memories of his past glory and betrayal, vows to exact vengeance and is determined to protect his newfound family…

You've gotten reborn as a tiny sapling in a prehistoric forest.Having survived a millennium of solitude, you've grown into a humongous tree. By chance, you end up saving an ancient clan, who makes you the clan totem and worships you. The flowers you bloom bless the entire clan, allowing them to stay youthful forever while developing super strength. But when war sparks, it's up to you to lead your believers to victory and conquer the prehistoric land.

When the apocalypse hit, and 90% of humanity turned into zombies,I, Oliver Burton, accidentally activated the Romance System. To my surprise, it didn't just apply to humans, and I ended up bound to Emily, a beautiful zombie girl. By feeding her raw meat, I slowly gained affection points. Things got complicated when my treacherous neighbors, Jack and Katie, demanded food. I saw through their plans and refused. A conflict brewed as they plotted a raid, but I was already one step ahead.

The game "Age of Magic Beasts" has come to life, and the world is falling apart. Charles Dawson, a hardcore player, fought desperately to resurrect his grandmother, only to be betrayed by his girlfriend and friend, dying with a heart full of hatred. Somehow, he was sent back to 12 hours before the catastrophe. With the knowledge of the future, he quickly accumulates wealth, transforming from a hardcore player into a cash player. Just before the game servers shut down,he makes precise purchases, draws the only SSS-level magic pet, and signs a contract ahead of time. When the disaster strikes again, Charles returns with his strongest magic pet and god-tier equipment, embarking on a path of vengeance against his enemies,saving his loved ones, and confronting the ultimate boss—the Dark King—on an epic, adrenaline-fueled journey.

The world mocks Zach McCarthy for being blind. Then the global trials begin, national destinies are bound to their champions, and Zach awakens an SSS-rank talent that the sighted world never saw coming. Broadcast live to every nation, he cuts through gods and demons with a sword that doesn't need eyes to find its mark. He isn't fighting for recognition. He's fighting to keep his country's mountains and rivers intact and every stroke of his blade makes the mockery harder to remember.

After being mocked as an F-rank failure, Felix Lynn meets Lyla Snow, a genius coach cast out by the soccer world. She buys a disbanded team, gathers players with "useless" skills, and turns their weaknesses into weapons. Together, they shatter the rule that talent is everything and become the sharpest blade no one saw coming.

In a world where humans awaken their talents to become beast tamers and form contracts with magical beasts, Crane, stripped of his powers by his family, awakens a mysterious system. He excels in the Beast Contract Ceremony and Hunter Tower Trials, and uses rare resources to grow both himself and his beasts. Driven by the search for his parents, he embarks on a journey through dangerous realms,facing fierce competition and trials to become a true beast master.

This is a Titan Era where Flynn Lester has transmigrated. In this world, underground caverns have opened, and demonic beasts invade reality, causing massive human casualties. In this time of crisis, humans can awaken Titans to resist the beasts.However,at his awakening moment, Flynn awakened the Tower of Ten Beasts,which contains ten god-tier primordial beasts. Watch as Flynn dominates the Titan Era!

Charlie guards the Demon-Sealing Tower for 1,000 years, holding back three top-tier Beast Kings and hordes of Soul Beasts that all tremble at his blade. The Sky Kingdom royal court frames him as unfit for the post and forces him to abandon the tower. Half a day after he leaves, the tower shatters, and billions of Soul Beasts flood the Human World.

Mark Bowen transmigrates into a high-martial-arts world but receives no "young genius" storyline. Instead, facing a midlife crisis, he activates a system that not only heals his hidden injuries but grants him the power to shatter anything in his path. This is the story of a middle-aged man climbing the martial peak. The tables turn! Don't underestimate a man at midlife! System, activate!

Veterinary intern Chiara is unexpectedly transported into a novel, becoming the infamous Peacock Princess of a shapeshifter world. Drawing on her professional expertise and gentle heart, Chiara gradually untangles the emotional knots of her shapeshifting husbands, helping them rediscover their purpose. Along the way, she herself grows from a good-for-nothing princess into a Level-5 powerhouse. The men who once dismissed her are now filled with regret, while the healed shapeshifting husbands develop an intense possessiveness and devotion toward her, unfolding a sweet yet fiercely competitive love story—a romance set in a chaotic battlefield of desire.