Chaldea Summer Adventure! Wiki

Chaldea Summer Adventure! ~A Boy Pursuing Dreams and a Girl Who Dreams~

The dazzling sun, the blue sea, camping fun, delicious BBQ, and—what has become somewhat of a Summer tradition—the discovery of a minute Singularity.
This year's summer is set on the Caribbean islands, a location famous for pirates running amok in search of treasure.
"Some pirate supposedly left the ultimate treasure somewhere in the Caribbean..."
Thinking this secret treasure rumored amongst the pirates is the link to resolving the Singularity, Chaldea participates in a great Caribbean treasure hunt!
The golden age the pirates always dreamed of, combined with an ancient hidden treasure...another grand summer adventure in the romantic Caribbean Sea begins!

A limited time Summer event in Fate/Grand Order, released on the Japanese server on September 8, 2021 and on the NA server on August 31, 2023. Leonardo da Vinci (Swimsuit Ruler) is given as a reward to players for completing the event.