Episode 423

"Reunion in Hell!? The User of the Bara Bara No Mi!" is the 423rd episode of the One Piece anime, and takes place during the Impel Down Arc.

Short Summary
Hancock turns Domino (and the Surveillance Den Den Mushi) to stone before she can undergo the body-check, allowing Luffy to escape into the prison. Hancock begs Luffy not to cause trouble. Luffy promises he won't and calls Hancock her real name and not "Hammock", causing Hancock to fall to the ground in swoon. As Hancock goes to the lower floors, she sees Luffy and prays for his good fortune. Luffy tries to say thanks via lips, Hancock however mistakes it as "I love you" and faints. On Level 1, Luffy runs into Buggy, who is trying to escape from the prison. With Luffys cover blown thanks to Buggy, they decide to team up together to defeat the enemies.