Crocomom Theory suggests Crocodile might be Luffy's biological mother. Chapter 1057 shows mysterious woman singing lullaby to Luffy's baby. Amazon Lily theory proposes Luffy's mother was former Amazon Lily Empress. Bonney and Luffy's mother Ginny theory lacks supporting evidence
Creator Oda states romance isn't a major focus in One Piece. Initially antagonistic relationship evolved into romantic alliance. Hancock proposed marriage but Luffy rejected it. Strong strength and cooking skills make them ideal couple. Could follow Dragon Ball's warrior princess theme
Luffy first used Gear 2 in episode 272 against Blueno. Enies Lobby Arc features Gomorrah's mission to rescue Franky. Total casualties exceed 2000, including half from Luffy
Known as "Garp the Fist," a powerful Marine Vice Admiral. Joined Marines at age 22 and became "Hero of the Marines". Refused Admiral promotion due to hatred for World Nobles. Currently serves as Marine Instructor after Ace's death
Technique creates hulking mass with Armament Haki and steam emission. Combines enhanced strength, speed and defense capabilities. Three variations exist: Boundman, Tankman and Snakeman
Gear 5 first appeared in manga Chapter 1044. Anime adaptation occurred in Episode 1071. Technique was first shown in One Piece Film: Red movie