Otaloli Dragon! Bahamuko-sensei

Dragons. They blot out the sun, strike fear in the hearts of men, spew fire onto doomed villages... the strongest beings in history. And now, their descendants are... somehow mangaka!? The little nerd Bahamuko-sensei is a brand new mangaka who got her first monthly serialization. She wants to make a world-famous manga and inspire other dragons (who are also complete nerds) to invade our world. Through thick and thin with her assistant Takigawa (soul patch), every day brings more scheming!

(Source: Kadokawa, translated)