The Demon Lord's Weakness

The Demon Lord's Weakness, aka being a lonely Onee-san who's just needed a small younger guy to pound her brains out while she tries to convince herself "its all an act".

Ahegao mating press leglock sex can tame any hundred year old Demon Lord Onee-san!

-@engrishteacher, fixed it. I know that he's just really small but I didn't know how you call a older woman thirsting after a the "small cute" guy lol. I've seen it before in a lot of tall girl chapters.

Once more, and relative to the young Hero MC, the FMC is both the Demon Lord and a Sexy Onee-san.

Suffice it to say: Today Was A Fine Day for A Match Made In Hentai.

Why do I get the feeling that our young Hero-kun is going to end up with a harem of ladies?

I guess only a sequel or ten will answer that question.

I was hoping the other three demon onee-sans would join in on the fun hopefully they will in a sequel!

There is a light novel series and anime called Maoyu that has a very similar plot. Minus the sex, of course. It had some really good plot points about the best ways to govern during war and prepare for peace. Absolutely in my top ten anime of all time.