Mu Xiaoxiao turned into Doraemon - the limited edition of the other world. He could get secret props by fulfilling girls' wishes. For the generous rewards of the system, he decided to take this job seriously. However, the heroines in this world are not normal. "Unrivaled power! Wealth that rivals a country! The power to control a country!" Mu Xiaoxiao said passionately, "Whatever you want, I can help you realize it!!" Sakurazawa Tomomi's big eyes flashed, "So amazing, can you really do anything?" "Go ahead, tell me your wish!" Mu Xiaoxiao folded his arms, full of prestige. "I feel a little uncomfortable with the swelling, Mu Jun, can you help me?" "..."

[Apocalypse + Heroine + Natural Disaster + System + Superpowers + Building Power] A crossover anime world, apocalyptic rewards. Xia Yu awakens a heroine encyclopedia system; collecting heroines makes him stronger. While others starve, Xia Yu feasts on delicacies every day. While others struggle to survive, Xia Yu is surrounded by heroines. [Yukino Yukinoshita: Evil Xia-kun, is this imprisonment game fun?] [Saya Takagi: You bastard, I don't like this feeling!] [Eriri: Baka! I, I don't like you!] [Chizuru Shiina: I've already turned into Xia-kun's shape!] ...

Li Tian awoke to find himself in a new world. Here, ancient martial arts, powerful mechs, mysterious superpowers, and mutated gene warriors… In this interstellar age of exploration, everything seemed prosperous and full of hope, but beneath this calm surface, turbulent undercurrents surged. Secret cults, star beasts, ancient gods, shadows… they had long since infiltrated every corner of the world, hiding beneath the surface, growing stronger and more powerful. …Fortunately, Li Tian possessed a class panel; with diligent practice, he would reap the rewards. From [Transmigrator] to [Lord of the Heavens] traversing the realms, from [Martial Artist] to [God of Martial Arts] who could shatter stars with his fists, from [Psychic] to [King of the Four Forces] who controlled the rules… In the zombie world, he was an unrelated figure who obtained everything. In the horror world, he was a holy being who purified everything. In the Warhammer world…

The ruins of the labyrinth, silent for countless ages, welcomed a new master. Niu Kun, heir to the throne of Bull Demon King and Lord of Beasts, pushed open a massive bronze gate leading to countless otherworlds and dimensions. "Huh? Why are all these otherworlds from anime I've seen before?" Niu Kun then wreaked havoc in the corpse-filled world of Apocalypse, transformed himself into the King of Monsters in the ordinary yet extraordinary world of mixed anime, became emperor in the war-torn world of Zan Akagi, and served as a demon god in the high school world of demons and angels...

Invincible + exhilarating + domineering character + doesn't eat beef + suffers no injustice or hardship + decisive in killing + crossover across multiple worlds and anime + harem (already experienced Ling Cage, Super God, Godzilla, Pacific Rim, Love Continent, currently in Mortal Realm...). Wang Yan, having fused with the Infinity Stones, has traversed the multiverse for many years. One day, Wang Yan arrives in a post-apocalyptic wasteland. Here, Devouring Beasts roam, and eerie Mana flowers bloom everywhere. Wang Yan: "Nirvana? Ash? Is this the Ling Cage world?" His mind scan covers the entire globe, and Wang Yan instantly finds his target. A spatial portal unfolds, and he abruptly descends upon the ecological frontier of Dragon Bone Village. ...The synopsis is insufficient; please read the main text.

Do you want to understand the meaning of life? Nangong You stared at the pop-up window on her computer and clicked "Yes" without hesitation. Hesitating even for a second would be disrespectful to the system! Nangong You: Transmigrated to the Little Garden, where the system gifted her the title of Zeus at the start, filling Zeus's position. To prevent the leaders of the Little Garden from discovering she was a weakling, she had to develop in other worlds. On Itogami Island, she met the two witches, Nangong Nayue and Sendou Muya, successfully recruiting the gods and becoming the Fourth True Group! She upgraded the Twelve Kin to the Twelve Constellations… In the Dragon Among Dragons, she kidnapped the Infinite Dragon God Orpheus, infuriating the Great Crimson who chased her for ten thousand miles. Ultimately, she successfully recruited two naturally born dragons for the gods… In Godslayer, she descended as a god who disobeyed Zeus and recruited Athena… In Bleach, she rebuilt the decaying Soul Society… In Kyoto, she launched the Night Parade of One Hundred Demons…

[Conquer another world, build a harem, no spoilers, and enjoy exclusive access to all female characters for the male protagonist] [Free monthly and recommendation tickets requested, invite code G6XREL] Lorraine travels through the world of anime and reincarnates as a goblin, only to fall into the clutches of Freya from the world of Stick Warriors. Awakening the fertility system, he defeats the Kingdom Princess Freya, experiencing rapid growth in the early stages before becoming the world-renowned Goblin God! To survive in this alternate world, Lorraine must care for the goddesses and monster girls day and night! Farm cowgirls, sword saints, Kingdom princesses, slime girls, mushroom monster girls, elf grandmothers, innocent succubi, flaming dragon mothers, Sky Mothers... No matter what race, their legs tremble and they fall to their knees upon seeing this legendary Goblin God! To amass a harem of every race, Lorraine will be found in jungles, underseas, volcanoes, deserts, snowy mountains, and even in dungeons! Freya: Master! You've made me truly experience happiness! Goblin Slayer Priestess: All I served before were false gods. Lorraine is my one and only true god! Fiery Dragon Mother: I've told you so many times, don't roast your meat on me! Sword Saint: I've defeated even the Demon King, I never thought I'd be dominated by a mere goblin. Sky Mother: This power... is so strong that even a god like me can't withstand it. The world of the Stick Warrior, the world of Goblin Slayer, the world of the Cute King...

"Ah, Noah, I remember your little trick!" "Seiga, the weak hope for miracles, while the strong control their own destiny." "You should understand that even the most powerful attack is meaningless if it misses, Reijudo!" "King of Ultra, the false king hides beneath a false crown, while the true king does as he pleases." Chen En, having traveled from the League of Legends universe to the Ultra World for the second time, has just become the Tyrant of Light. Before he can conquer the entire dimension, he is sealed away by the mysterious Four Ultras. He thought he would sleep forever. But then, his soul entered a dimension, saw other versions of himself, and discovered that they could share abilities. Suddenly, everything became interesting. He awakened again in the Ultra World and became the final boss! In the Cage World...

"Xue Li, why are we playing Jenga?" "Rebecca, Lucy, V... because I think you need to fight side-by-side and communicate more deeply."... Xue Li transmigrates to a cyberpunk world and gets caught up in a cyber psychopath massacre. Fortunately, he awakens a cyber psychopath treatment system. As long as he helps female cyber psychopaths restore their sanity according to the instructions, he can replicate their prosthetic abilities to enhance himself and control them... This means he can enjoy the benefits of the cyberpunk world without being entangled by its side effects. Faced with a suffocating company, streets filled with violence and bloodshed, and digital ghosts roaming beyond the black walls, Xue Li decides to use his body to become the light illuminating the neon lights, giving them and the world a small shock. Rebecca: "Bitter! I won't be defeated by cyber psychopaths!" Lucy: "I... I don't need you to treat me!" Sasha: "Treat... treat me and I'll be cured! I'm not afraid!" Xue Li: "Come on, cure your cyber psychopaths, and let's burn this messed-up world to ashes!"

[Multiple female leads] [Invincible protagonist] [Pure and satisfying] [Non-Japanese male lead]

Lu Ming, from the world of high martial arts, obtains a system that allows him to travel to anime worlds. He can obtain different rewards by conquering these worlds.

However, these anime seem to be somewhat niche...

For example, "About My Brother and I Living Together in a Small Town."

Or, "My Devil Club Story is Really Problematic"

Or perhaps, "The Story of the Tsundere Student Council President and His Naturally Dark Twin Sisters"