Abandoned at age nine, Cutty Flam (カティ・フラム, Kati Furamu) changed his name to Franky (フランキー, Furankī) and is taken in as an apprentice by shipwright Tom, who built Pirate King Gol D Roger's ship, the Oro Jackson, and also secretly holds the plans for a devastating ancient weapon.[ch.

356] Attempting to rescue his master, Franky suffers severe injuries and only survives by rebuilding parts of his body using pieces of scrap metal, turning himself into a cola-powered cyborg with strength.[ch.

After gaining notoriety as "Cyborg" Franky (サイボーグ フランキー, Saibōgu Furankī), and to fulfill his dream of sailing a ship he built around the world, he constructs the Thousand Sunny, a brigantine-rigged sloop-of-war, for the Straw Hat Pirates and joins the crew.[ch.

[8] Franky is a very tall male (close to 225 cm, or 7 foot 5 inches) with light teal-blue hair which he can freely shapeshift depending on what kind of aliment he consumes, due to his cyborg abilities.

In his adulthood, he has a slightly unusual muscular build as a direct result of the modifications that he conducted upon himself, with large tosro and forearms compared to which his biceps are significantly smaller.

He typically dresses himself in swimming trunks, which is why people think that he is a pervert and have come to name him so, and an unbuttoned loud Hawaiian ‘Aloha’ shirt over a huge gold chain around his neck.

He has proven to be among the most matured and trusted Straw Hats by trying to make his younger comrades laugh while thinking of important things at back of his mind.

By consuming quantities of cola at once he can unleash bursts of air from his arms employing this technique in maneuvers, like the impactful "Coup de Vent".

Despite the lack of cola, he shows enough strength to overpower fully-grown rampaging animals, stopping them in their tracks, before dragging them around like a rag doll, smashing them to the ground with great force.

Besides the modifications of his very own body, Franky created a variety of vehicles which himself and the rest of the Straw Hats can use during battles such as the Shiro Mokuba I (an automatic waver), the Mini Merry II (a shopping boat created in the memory of "Going Merry", the Straw Hats' first ship), the Shark Submerge III (a submarine), the Kurosai FR-U IV (a motorcycle Franky often uses), and the Brachio Tank V, a terrestrial three-person tank usually operated by Usopp, Tony Tony Chopper and one more crewmember.

He has mastered the skill during the timeskip while he worked in Dr. Vegapunk's laboratory and used it in several of his direct duels against main villains such as CP-9 agents and even ex-yonko Big Mom.

After short confrontations against his future crew, Franky joins them in the battle against The Marines and CP-9 agents from the Enies Lobby, having taken the chance for retaliation against Spandam.

Franky was then offered the chance to join the Straw Hat crew by Monkey D. Luffy, leaving Water 7 in the hands of Iceburg and Galley-La Company members.

[17][16] When the crew got separated before timeskip, Franky landed on the Karakuri island, where he worked in Dr. Vegapunk's laboratory to develop his crafstmanship and technology knowledge.

Based on the anime plot, it was noted that his character has been shaped around bravery and justice as he equally defended Nico Robin from the persecutions made by the World Government and CP-9 agents upon her very own existence.

The ultimate act of bravery made by Franky was burning the blueprints of the Ancient Weapon of Pluton in order to protect his own future from the government's wrath.