What's your advantage if you transmigrate into various anime worlds? It's information on beautiful girls! And what do you do after getting that information? Fall in love? That's too narrow-minded, bro! When transmigrating into anime worlds, you must understand one thing: what's most valuable in these worlds? It's the incredible work abilities of the female protagonists from different anime! Imagine starting a company! Actors can make movies, writers can be screenwriters, artists can be art directors, animators can be animators, and singers can be divas!! Get Mai Sakurajima to make movies, Utaha Kasumigaoka to write scripts, the blonde loser to draw manga, Sagiri Izumi to do illustrations, and classic characters from the Idolmaster and Love Live! IPs to form an idol group! How much money could you make? I don't even dare to dream about it~~~ [Stable updates, welcome to bookmark~~~]

One day, Song Shuhang accidentally joined a chat group for veteran chuunibyou (middle school syndrome) sufferers. The group members all had avatars of certain anime characters and talked about strange topics—Chihaya Aine: [Family, just arrived in London and assigned to the Badger House. Does anyone know how to make the Pointon potion?] Mech Warrior: [Has anyone played "Cosmic God"? Why is Gaia's stats lower than Thunderbolt's? Do I have to go to jail for a second transmigration? This is truly speechless.] Lu Mingfei: [Uh... does anyone know what the hentai world is? I have a blond guy next to me who looks a bit too strong, and three incredibly beautiful older sisters with him... huh? Holy crap! Am I the victim? Song-ge, help me!] Toyokawa Shoko: [My Maybach was hit by a Yonhap. Where is Kassel?] At first, Song Shuhang thought everyone was just having a chuunibyou moment and doing cosplay online. It wasn't until various videos and photos were uploaded to the group chat by other members that Song Shuhang realized they really seemed to be time travelers. So the question is... if they've all time-traveled, how far behind am I? Suddenly, a group of people shouted in his ear, "Sir, we are willing to go with you!"

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!