Crossover Anime: Starting with the Time-Stopping Succubus, Doing Whatever You Want

Qiu Bai transmigrated into a crossover anime world where the real and the fictional are intertwined. From childhood to adulthood, he was surrounded by characters he "knew".
Akizuki Airi, Akizuki Mana, Shiina Chizuru, Mashiro Chisato, Hoshizuki Kaede, Hoshizuki Suzu, Nanao Akane...
There are also his two younger sisters who live with him—Mikan Yuuki and Sora Kasugano.
Mikan is young, but capable and mature, very energetic, and takes care of all the housework every day, making her life much easier.
Qiong is slightly older, but she is aloof and arrogant, and her constitution is a bit weak. She stays at home every day, which is worrying.
The system will be officially activated after Qiu Bai turns 18!
Kuze Akihaku: What? I'm going to be a male succubus in both the inner and outer worlds right after I came of age? And I have the ability to stop time!