Subcategory list

Hi,
I would want to display a list of the current category subcat and subsubcat, with the current category not display.
like this.
I am quite new to CCS and I can’t find my way to achievement…
Sorry for the silly question… I’m learning 🙂

Many thanks,

Yoan

https://ww.wp.xz.cn/plugins/custom-content-shortcode/