Makima from Chainsaw Man was released by Furyu as a noodle topper figure. The chair will not include the figure as it will be available in Japan.
Makima wears her usual outfit of a dress shirt and pants with her legs crossed and propping her face up with her hand, as you would your other figures.
Makima is being held hands in the exact same way as she used her force manipulation to kill enemies in Chainsaw Man, according to Furyu. Good Smile Company, for example, will release a Pop Up Parade, scale figure, and Nendoroid of her.
The Chainsaw Man Makima noodle topper figure is readily available in Taito crane games in Japan. It will most likely also be available in online stores, although at a premium.