My and Their Anime-Style Otherworldly Survival Adventure

Good news! I've been transported to the world of anime and manga.
Bad news: After transmigrating to the world of anime, I transmigrated yet again.
Bad news, this time I've been transported to a deserted island.
Good news! A two-dimensional anime girl also traveled here with us!
Sania: Ella, you're my best friend. Jiuxiao is my most important friend. Let's all have fun together!
Fate: Who is Nanoha? I don't know her at all!
Madoka Kaname: Homura-chan, please don't stick to me like that anymore, or I'm afraid Jiuxiao will misunderstand.
Yuan Jiuxiao said: Don't argue, everyone is my wings.
Jiuxiao thought he would live a happy life from then on, but he found that the girls had not only come, but they had also brought all sorts of weird things with them, such as witches, alien soldiers, Gastrea, and so on.
The gates to another world have opened, and Yuan Jiuxiao has embarked on his journey through these familiar worlds. He will be involved in many worlds, so please look forward to it!
The black bullets have ended; the current world is Puella Magi Madoka Magica.
P.S.: The harem doesn't speculate on stocks or take care of stomachs.
It's expected that many magical girls and characters from classic anime will appear. The first few chapters are not very well written by a new author, so please be patient and read a few more.
If everyone didn't click to read this, Watashi...
Hope you like it.