"seidorei keikaku" is an SM channel run by Maria and her partner.

Her male partner is Maria's slave.
These are training-type videos, and the main focus is on men being restrained and suffocated.

Maria has an attractive body with impressive hips and thighs, and she also has a cool aura that exudes the dignity of her master.

Maria's favorite training routine is "pressing the face with her big ass."
She is forced to service pussy and anus in a face-sitting position.
A man in pain and Maria having fun.
This contrast creates an indescribable eroticism.

Other than that, there is some slightly harder play such as trampling with heels, hitting in the groin and drinking urine, but generally Maria is a gentle master.
There are also plenty of videos that you can enjoy, such as handjobs while verbally abusing the girl and breastfeeding play.
Of course, there are plenty of scenes in which Maria gets erotically wild.