MTL - The Earth is Online - Chapter 187

SSR-ranked killer Mu Hui died in an explosion, only waking up to find herself transmigrated into the body of a vicious female supporting character in a book.

Yo, Hi! I’m Frank, I made a deal with a demon to pay me some money for receiving a guest for a few days every week.
I had no idea about what I have done.
On May 1st, Conan ‘the God of Death’ came to my house. I was forced to let him in and we get involved in a criminal case.
On May 8th, Bruce Wayne ‘Batman’ came to me. I was forced to follow him to fight crime.
On May 16th, Hannibal Lecter, The Silence of the Lambs, came to my home. I can only say that I really can’t stand my guests.

- Description from Novelupdates

The suicide of a high school girl following the rejection of her crush whom she confessed to roused the soul of a Scorpio Planet Marshal from her 200 million years of slumber — she reincarnated into the body of Xuan Mo. And so, she decided to live on Earth on behalf of the girl! However, it was quite the miserable situation for an alien to own two different sets of memories. She had to use her peculiar mental power to peep into the previous owner’s memories regarding everyday, mundane matters while trying to rein in her cutting aura pretending to be a normal human…

But her shocking performance during military training definitely must have floored everyone. Okay fine, her incredible finesse aside, what’s with the consecutive bullseye for every single round during their shooting competition? Was this something a normal female student is able to achieve? Shouldn’t you explain yourself a little damnit! And what’s with the multiple grade jumps, and being contended for by the various prestigious universities? What kinda havoc you try’na wreck with your low-key flaunting? I mean it’s a good thing she’s caught the eye of a special organisation and was entrusted with important tasks, but what’s with all aloof rule-breaking gameplay? She’s practically the walking definition of “hated by even the gods”.

What’s even stranger was that Xuan Mo’s only ever interested in warring matters and battling; she’ll only ever pay her ferociously blooming blossom luck as much heed as she minds the passing cloud with the mindset of crossing the bridge when she reaches it (wipes sweat) and can you be less insensitive when handling the various Earthlings’ endless crushing and eye-candying you?!

This all screeches to a halt however when she discovers the existence of someone else from her home-planet, so she’ll be needing a raincheck with the getting a “spouse” part of mortal life on the Blue Planet. Of course, we’re discussing this on the premise that she wanted to return home…

- Description from Novelupdates

The world I reincarnated into was a world that enabled you to use magic after having read a Grimoire.

And the Grimoire’s contents areーー you wouldn’t believe it- it’s 「Manga」.

This world’s people would take around a year to read a single Grimoire (Manga)

While for me, it would not take an hour, as it was「Manga」

Interpreting and understanding all kinds of Grimoires, the 6 year old me who became the World’s Strongest Master Mage, welcomed brides that were also 6 years old, and started living a carefree life……!!