Background Information

Sengoku Youko is a completed shonen manga series with 17 volumes created by Satoshi Mizukami. (also the creator of Lucifer and the Biscuit Hammer and Spirit Circle)

"Stop your evil deeds and take the right path!" That is the creed of Youko Tama and her younger step brother, Jinka Sendou. The two demon siblings travel the country to stop the deeds of all evil doers, along with a scaredy cat swordsman they picked up along the way, Hyoudou Shinsuke. Their travels lie with many twists and turns, as well as wacky characters they'll meet along the way.

It's a really good series.

Standing in the battledome

The verse is above the likes of Rurouni Kenshin.

As far as their individual character strength goes, most fighters are wall level to small building level+. Speed wise they're at least faster than the eye can see+, likely far higher. The top tiers are casually city block level+ and maybe even far higher than that.

There are some notable hax such as dimensional BFR/teleportation, intangibility and mind control.

They also have access to town/city sized fortresses and can be controlled with magic.