Use reverse image search.
No one expects you to know everything. If you don't know obvious stuff, people will call you a newfag. But everybody gets called a newfag sometimes.
Now stop being a faggot asking for source when a google search function has been built directly into the website here.
That Makoto and Miki doujin is still one of the best [email protected] ones ever.
>Who the fuck even is this
I don't even watch Idolshit and I know this idol's name, and what series she's from.
You seriously need to watch more anime, or at least stop being such a fucking casual.
Delete this right now.