Qiubai has traveled to a world where inner and outer worlds merge. Growing up, he's surrounded by characters he's "familiar" with. There's Akizuki Airi, Akizuki Marina, Shiina Chizuru, Mashiro Chisato, Hoshizuki Kaede, Hoshizuki Suzu, Nanao Akane... and his two younger sisters, Mikan Yuuki and Kasugano Sora, who live with him. Mikan is young, but capable, mature, and energetic, taking care of the housework daily, making her a worry-free existence. Sora is slightly older, but aloof and tsundere, with a slightly frail constitution. She stays at home every day, a worrying prospect. When Qiubai turns 18, the system officially activates! Kuze Akibai: What? Just coming of age, I have to become a male succubus in the inner and outer worlds? And I even have the ability to stop time!

Transmigrating to a crossover anime world where gods and demons coexist, and cursed spirits dance with monsters. Lin Qingping, a top student from a small town, achieves first place in Chiba City's unified exams and enters Soubu High School. He's then chosen by Mrs. Yukinoshita to marry into the Yukinoshita family! He becomes Yukino's fiancé! He thought he'd be living off his wife for life, but unexpectedly, he awakens an upgrade panel! He starts by copying the Mystic Eyes of Death Perception, instantly reaching max level! He'll kill even gods if they're alive! Yukinoshita Yukino: "Yukino is one thing, but why did you even... Mom..." Yukinoshita Yukino: "I'll say it again, don't call me 'sister-in-law'! I was here first!" Suo Yuki: "Big brother is mine!" Hyuga Hinata: "Luckily, I only have one sister." Otsutsuki Kaguya: "Hagoromo Hamura, come and pay your respects to your Uncle Qingping!" Lin Qingping: "At first, I really just wanted to be a kept man!"...All virgins included! A harem fantasy!

Tatsumi has been reincarnated as "Chikusou" and has become the Dungeon Lord of Orario! His own dungeon connects to all realms! Highschool of the Dead, Shokugeki no Soma, Gourmet Prisoner, That Time I Got Reincarnated as a Slime, Undead King, Reincarnation: Jobless, One Punch Man, Little Garden... and every battle in the dungeon converts into experience points for Tatsumi! So... Ace Wallenstein: My two minutes of deep training... and Tatsumi-sama raised his level by fifty?! Busujima Saeko: My sword is Tatsumi-sama's sword, and my body is its scabbard! Nakiri Erina: No, why are the ingredients fighting here? Storm Dragon Veldora: Dungeon? What the hell are you doing here!? Black Dragon: Master?! Save me! Albedo: Please let me fight for Tatsumi-sama! Roxy: One magic spell raised Tatsumi's level by a hundred! What the hell is a 100x entry?! Start by entering the dungeon, conquer the heavens and the worlds, and build the supreme kingdom of God!

[HP fan fiction + no system + slow to warm up + funny and weird + single female protagonist]

Neos lost his soul during the journey through time. He was smart and made a new body for himself. Although it has no soul, it is enough!

———

Dumbledore: What is this?

Neos: A demon, what else can it be?

Dumbledore: Huh?

———

Snape: You must stop using the power of the demon!

Neos: But... we... are wizards...

Snape: What's wrong with wizards?

Neos: Of course wizards have to play with demons. They can't go to angels or people from the church, right?

———

Harry: Neos! Azazel used strange magic on me again!

Neos: Didn't you say you wanted Snape not to target you?

Harry: There's no need to turn me into a girl!

Ron: Yes, just turn Harry into a girl in the potions class.

Hermione: Hurry up! Class is about to start!

———

Azazel: If the sacrifice this time is still a pig's trotter or a pinkie, don't blame me for being passive.

Neos: Here, piglets.

Azazel: Asshole! I've had enough! Why is it always these things?

Half an hour later Azazel: The piglets are delicious.

[Naruto, system, become stronger by touching corpses, upgrade, invincible]

On the night of the genocide, Uchiha Heng'an bound himself to the corpse-touching system to become stronger, and could recycle corpses to obtain blood and strengthening points.

He quickly became stronger with the help of the system and the Mangekyō Sharingan, and saved the entire Uchiha clan with his absolute strength!

[Multiple female protagonists][Feminization mod][All characters that can be conquered are gender-changed to female, so be careful if you don't like it.]

After traveling through Stardew Valley and deciding to settle down on farming, Lin Yan discovered that there seemed to be many more women around him. How could he manage his interpersonal relationships and settle down on farming at the same time?

Worlds traveled through: Main World (daily life in anime) - GOSICK + Pandora Hearts + Danterian's Bookshelf + Monogatari Prequel + Rozen Maiden - Return to Anime (Monogatari + another + Mujica + Brynhildr in the Dark + The Visible Girl) - Date a Live - No Game No Life Zero - Black Bullet - Little Garden - A Certain Scientific Railgun Byakuya: Others traveled through time with a system, why did I travel with a God! Especially since this God wanted to be my mother. Glass: Byakuya, you saved my Son of God. Eriri: Is your God serious? Yukino: How did my Service Club really become a Service Club? Victoria: You promised not to let me continue to be bored. Shinobu: God? How interesting! Kaguya-sama: You want us to become angels serving God together? Which God? The Son of God? Wouldn't that mean serving you? Misaka Mikoto: You bastard Shiroya, why did you go to my mother with Last Order and say that she was our daughter? Shiroyasha: There is already a Holy Son in the little garden, how can you have the status of a Holy Son? Are you actually Hong Xiuquan?

Carl Lance, who traveled to the United States during World War II, lived in this world for twenty years before realizing that he had actually transmigrated into the world of X-Men and become the most awkward race in American comics: mutants!

Fortunately, as a time traveler, he doesn't need to struggle with whether he is human or mutant.

After accidentally gaining the ability to traverse the multiverse, Carl completely lost all restraint, becoming the sole true god who transcends the multiverse and breaks dimensions, not only for Disney, but also for Universal, Fox, Warner Bros., Sony, Constantine, and many other multiverses!

Hachiman Hikigaya, who was expelled from Advanced Training School in the second year after a unanimous exam, was taken in by a rich girl after leaving school and trained to pass the college entrance exam. He then happily received a large truck... Hachiman Hikigaya, who isn't exactly a rich kid: "Ouch, that hurts so much, Ryuen!" Ryuen: "Hikigaya is my good brother, you have to pay more." Ichinose: "What's mine is mine, no one can take it away." Ayanokoji: "How did I end up in Class C?" —————— Currently, he has: Ichinose, Shiina Hiyori. Number of students temporarily expelled by Hachiman: Nine.

In 1644, the Ming Dynasty began as a Kryptonian. Just ask King Chuang, Wu Sangui, and the Regent: are you afraid?... In the Seventh Universe, a company composed of countless time travelers, we are a group of capable, organized, idealistic, and...