ワンピースより天竜人の奴隷の焼印です。

乳首に付けたい場合は、covered nipplesとnipplesを追加してください。

また、inpaintを使うのも有効です。

Branding mark of the celestial dragon's slave from One Piece.

For "branded on nipples" add "covered nipples" and "nipples".

Inpaint is also useful.

Update (IL v2.0)

Strength: around 0.8

Trigger Words: c-d brand,

Optional Prompts: branded on nipple/back/belly/breast/arm/forehead/thigh/ass/abdomen, covered nippples/navel

Not my model: https://civitai.com/models/1439120?modelVersionId=2190763