That Time I got Reincarnated as Son of an Idol

This fanfic is just wish fulfillment, Gary stu Fanfic with poor grammar, read at your risk.
This is just fanfiction, don’t think too much. Please just enjoy!
Maybe a Harem focused story. and the word count is short too… It’s more like 1000-1200 words per chapter and I will post this daily hopefully.
Ah, there is a spoiler in the synopsis and I don’t recommended who still not reading Oshi no Ko to read this Fanfic.
This FF contained, Oshi no Ko, Kaguya?, Love Live, Hololive (because I want it) and any other anime I like… Or any vtuber I like too… Why not…
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When I woke up I was in heaven since I woke up in the arms of a beautiful woman with blue-purplish hair.
Hm… But I wonder why there was a star in each of her eyes…
Hm… It looks like she called me Aquamarine.
Hm… It looks like I was reborn as a baby…
Hm… It looks like I have a twin sister…
Hm… It looks like my twin sister is also a reincarnated person…
Ah… Isn’t I reincarnated as one of MC from the manga called Oshi no Ko, in which my beautiful mother would die at just 20 years old.
There’s no way, I let that tragedy happen in my reality… and I will smack my father by my own hand by becoming a successful person in this entertainment world with the help of knowledge from another world!