How NOT to Summon a Demon Lord, or as I like to call it, Harem King From Another World is your standard ecchi/harem isekai with an overpowered mc.

PLOT

One day the main character is suddenly summoned into a fantasy-type world as a slave to a pair of adventures. During the summoning process, something goes wrong and the roles of master and servant are reversed leaving the newly summoned protagonist with a catgirl loli and big tiddy elf as slaves. The world is extremely similar to a game the protagonist played in his world, hence when he is summoned not only does his appearance change, but he is also able to bring all of his items with him from within the game. (similar to overlord)

CHARACTERS

Honestly, nothing really stands out here. The characters are pretty funny and there's a lot of fanservice. Diablo, the mc, is a chicken on the inside but has to keep up the appearance of a real demon lord. While unoriginal, this led to some funny interchanges. The rest of the characters were just your average harem members, otherwise known as free fan service.

OVERALL

This show wasn't bad at all. It was pretty funny and full of ecchi. I wouldn't recommend this to people who tend to dislike the isekai/ecchi genre, but for those who do, you will definitely enjoy it.