About CrocSan Day

CrocSan Day is an online fan event for anyone 18+ to create fanworks and share their interest for the ship of Sir Crocodile and Vinsmoke Sanji from One Piece.
All 18+ fans are welcome to participate by creating and sharing fanworks, supporting artists and writers, cosplaying, and more!

Schedule

CrocSan Day will be September 3rd, 2025.
October 3rd is a reference to the birth months of Crocodile (September) and Sanji (March) respectively (9/3).

Why September 3rd?

CrocSan Day will be September 3rd, 2025.
October 3rd is a reference to the birth months of Crocodile (September) and Sanji (March) respectively (9/3).

Prompts

Fashion
Sugar Daddy
Fantasy
Fate/Destiny
Choking
Baroque Works
Mafia AU
Power Dynamic
Possessive
Aliases/Undercover
Modern AU
Phone Call/Phone Sex

Who can participate?

All CrocSan, Crocodile, and/or Sanji fans who are 18+ are encouraged to participate!Due to the nature of the content that may be promoted by the event account, events are restricted to CrocSan fans who are 18+. Underage accounts will be blocked.

What kind of fanworks are allowed?

Any fan content that centers on Crocodile and Sanji is permitted: art, fic, threads, cosplays, animanga edits, etc.This includes platonic or character study works, romantic or sexual relationship works, and taboo or dead dove works.Please add content warnings when posting on social media and tag appropriately when adding works to the AO3 collection.

Will there be an AO3 collection?

Yes, CrocSan Day will have a dedicated AO3 Collection that remains open for the duration of the event. The link will be shared here when it is available.

Are the events open to fixed or switch shipping?

All ship dynamics are welcome. Tag appropriately alongside the event hashtags when posting works on social media (CrocSan, SanCroc, CrocSanCroc) or on AO3 (Top, Bottom, or Switch tags).

What kind of fanworks are not allowed?

We ask that you refrain from sharing fanworks that center ships that pair Crocodile or Sanji with other characters for these events. Our goal is to celebrate all shades of CrocSan, so it should remain the focus of the events.Fanworks generated through plagiarism and AI are not permitted.

Is there a prompt list or theme for the events?

Yes! You can see the prompts below or reference our prompt graphic on Bluesky, Tumblr, or Twitter.Fashion
Sugar Daddy
Fantasy
Fate/Destiny
Choking
Baroque Works
Mafia AU
Power Dynamic
Possessive
Aliases/Undercover
Modern AU
Phone Call/Phone Sex