Sankaku Channel/nudist

This tag should only be applied when one or more characters is lacking in any covering top and bottom, including breasts (if a girl), butt, and genitalia. This tag is not affected by a character wearing shoes, socks, accessories, gloves and the like. Should never be applied to a character simply because they are in their underwear, or if they are wearing underwear but they are pulled down. The implication should be that the person is nude by choice.

Particularly this is when a person is in a public place or with other individuals or in a setting of daily life but sans clothing. The person will generally not appear nervous about their nudity, but may be nervous about other aspects of the situation in the picture. A blush alone does not negate this tag.