Does anyone know which anime god this cruel picture comes from? (Which cartoon is it ...)

Meidochan comes from the animation Black Reef. The following is Baidu Encyclopedia:

Fabella

A character in Black Reef. The only maid in the Labres family who has fighting skills except Roberta came to Roana Pula for some reason. Because she looks like Roberta, when she appeared in the hotel, it caused everyone including Revy to panic. However, unlike Roberta, she is not good at fighting. She brought lollipops and lunch boxes instead of shotguns and grenades. But there are also light weapons hidden in the clothes. The way of fighting is to dance the Brazilian war dance with light weapons.

in addition

Personally, I think "Black Reef" series is worth seeing, and it is an animation of violent aesthetics. (digression-)