Introduce yourself as your favorite anime or manga character. Like if I'm kakashi sensei i'd say 'hello everyone I'm Kakashi Hatake. Sorry I was late, I got lost on the road of life"

lights camera ac.....tion

*Second coming*
50 years ago Inuyasha (XD) 50 years ago I pinned you to this very same tree with my sacred arrow. Now we meet again and I shall not let anyone save you this time. Ha ha ha

My name is Monkey D Luffy. I want to find the one piece and become the pirate king.Yosh!

....

I am the hope of the universe, the sworn protector of the planet Earth. I am the answer to all beings everywhere who cry out for help. I am called Goku and I AM A SUPER SAIYAN!

"Guten Tag~"
The demon takes his hat off and playfully bows.
"I am known as Mephistopheles, and I'm pleased to make your acquaintance~"
A sly and mysterious smirk spreads over the man's pale face as he seems to observe you.

Is there a need for a formal introduction? Alright. Good evening, my name is Kagura. * to Sesshomaru* yo! It's a pity that Naraku failed to slice your brother into Scooby snacks! * even before she came* I'm leaving for now *takes feather* poof!

The star demon floated out of a hole with a bright glow around him.

"My name is Pamoon. A thousand-year-old demon, and one of the Four Heavenly Kings."