Name of the hentai series

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Hey, I'm looking for a certain hentai series but I can't seem to find it.. I don't know much but I do remember one scene very well.

Characters:
Small tsundere (maybe)princess with yellow hair
Some guy who's the ringleader of something
and big ass troll/ogre/whatever with a huge cock

Stage:
Actually, stage. Stage in the middle of the town with people around watching

Plot:
Small tsundere girl gets raped by the big ass troll and his huge cock devastates her. but by the end she likes what was happening. Scene plays out similar to the image posted.

Additional info:
I THINK, but I'm not sure, that this happens in 3rd episode. I could be very wrong and it could be episode 1 though.
I think the series maybe at about 10 years old.. seemed newer, but I could be mistaken as well here.