Rosboyicesse

 is a gender connected to being a Rosboy princess. This gender is connected to being a Rosboy, Rosboy aesthetics, princess aesthetics, and Nonbinary Girlhood.

Etymology
"Cesin" is the suffix for Princess System genders.

Definitions

 * rosboyicesse: a gender connected to being a rosboy princess. this gender is connected to being a rosboy, rosboy aesthetics, princess aesthetics, and nonbinary girlhood. - Neopronouns, 2021

The prince equivalent (as part of the Prince System) is Prirosboy, and the neutral royalty equivalent (as part of the Royal System is Royalrosboy.