So I seem to have forgotten the name of this manga that goes something like this:

-Main protagonist really loves a specific galge.
-One day computer screen suddenly shows strange message and he pops in the disc to his favorite game.
-Next day the heroines appear in his life like they were always there.
-Protagonist later learns living a galge is not as easy as in the game(go figure).
-One heroine will supposedly die if he doesn't prevent it and in the meantime she's getting bullied and badmouthed by protagonist's classmate.
-Another keeps on getting ignored and seems to be falling into depression.
-Transfer student heroine confronts protagonist before falling into character due to noticing something going on.

Can't seem to remember much else. But yeah it goes a little something like this.

Galge no Sekai yo, Youkoso!

This would have been the first result if you searched galge. Not saying that in a mean way, just trying to be informative. Though I did know it off the top of my head. Or more specifically, I remember it had "galge" in the title.

I really should have done that instead of trying to find it using the "video games" tag -_-. Anyway thanks again Akukame.

sence im already here, have you read metal heart kinda seems like what you wanna read

"Sanity is for the weak"

Hmm may pick it up sometime. Thanks for the recommendation! 🙂