Identify game around male protag

[ScrewFearMe]

Its a game around a male protag that reads a book and gets transported into a different realm and now has super powers and his sister and dad are his enemies, but he turns his sister and makes his dad loose his powers and then he gets to see and speak to his mom he thought was dead or something.
IDK if this game is abandoned or not, but I sure as heck dont remember the title of the game.
Its also a harem game.

 

[De_brick]

Serenity

 

[ScrewFearMe]

Thanks