|“||We must find Nooroo and his Miraculous. If it has gotten into the wrong hands, there's no telling what evil will come upon the world!||”|
—Master Fu, "Ladybug & Cat Noir"
Master Fu is a healer and the Great Guardian of the Miraculouses. He gives Marinette Dupain-Cheng and Adrien Agreste their Miraculouses to stop Hawk Moth and his villains' evil-doings. With the Turtle Miraculous, when inhabited by Wayzz, Master Fu transforms into a turtle-themed superhero. He is also the last known remaining guardian from the Order of the Guardians.
Fu is a short Chinese man with dark brown eyes. His hair is gray and he has a mustache and goatee.
He wears a red Hawaiian shirt with a white hibiscus flower pattern, tan capri pants, and dark brown shoes. The Turtle Miraculous is on his right wrist.
Fu is wise, respectful, and gentle. He is dedicated to keeping Miraculouses out of the wrong hands to maintain balance, and he recognizes good heroes as kind, helpful individuals who put others before themselves. While he is serious when it comes to his work as a healer and a guardian, Fu can also be lighthearted, often slightly teasing Marinette. He doesn't consider himself old as believes that he is young, but he is still aware of when he can't fix a major issue himself.
Because of his mistake, he is very cautious about handing out other Miraculouses to the right people. Also, he prefers to keep himself and purpose a secret from Hawk Moth and other people, aware that Hawk Moth may come after him or the Miraculouses in the box if he finds out about him. Usually, he does not allow people whom he has given Miraculous to meet him unless there is a special reason.
As a civilian
As a healer, Master Fu can improve the health and read the energies of humans and kwamis. One of his methods includes hitting a gong, as seen when he helps Tikki heal from her sickness in "Princess Fragrance".
Additionally, Master Fu is very knowledgeable about the history of the kwamis and the Miraculouses. He explains with strong clarity and insight how kwamis are abstract creatures, how they are formed, the types of abstract ideas and emotions that they are formed from to Marinette in the second issue of Miraculous Adventures.
As he explains in "The Collector", he was trained by the Order of the Guardians, so while his training wasn't finished, he can decipher some of the code in the Miraculous spellbook. His knowledge also extends to some of the Miraculous' powers, explaining the wish-granting power of the Ladybug Miraculous and Cat Miraculous and its consequences to Marinette in "Robostus". However, he acknowledges that some of his understanding of the Miraculouses and their powers is limited.
As a Miraculous holder
Master Fu and Wayzz work well together, both taking the situation of a Miraculous falling into evil hands very seriously. Although Master Fu disagrees with Wayzz about being too old to defeat Hawk Moth, he agrees with him that he can't stop Hawk Moth alone.
Master Fu chooses Marinette to wield the Ladybug Miraculous after she unknowingly passes his test by courageously rescuing him from oncoming traffic. When it comes to both her and Adrien, he believes that they are made for each other. Marinette comes to his shop so he can heal Tikki in "Princess Fragrance", where he reminds her to be patient and finds amusement in that she isn't aware that he knows about kwamis and Miraculouses, asking her what kind of cat Tikki is. Master Fu officially reveals himself to Marinette in "Volpina" when she and Tikki visit him to give him the Miraculous spellbook.
Since then, Master Fu is a patient and sage teacher to Marinette, explaining the origins of kwamis and the consequences of their powers to her. He is understanding with her when she doubts telling him the truth about who she got the book from in "The Collector" and she has to leave early to head to the Île aux Cygnes in Miraculous Adventures. However, in "The Collector", he gently notes to her that they need to trust each other in order to defeat Hawk Moth. His faith in her shows when he entrusts her to choose a one-time Miraculous holder in "Sapotis" as long as it is a trustworthy person and she returns the Miraculous afterwards.
Though Master Fu hasn't met Hawk Moth in person, he's aware of his existence and has been determined to stop him and retrieve Nooroo and the Moth Miraculous. He expects that Hawk Moth wants to use the wish-making power of the combined Ladybug Miraculous and Cat Miraculous, and he doesn't want Hawk Moth to find out about him or the Miraculous jewelry box, making him cautious about taking out other Miraculouses besides the Ladybug and Cat Miraculouses.
|Miraculous: Tales of Ladybug & Cat Noir Theme Song:||Absent|
|1. "The Bubbler":||Absent||14. "Princess Fragrance":||Appears|
|2. "Mr. Pigeon":||Absent||15. "Ladybug & Cat Noir (Origins - Part 1)":||Appears|
|3. "Stormy Weather":||Absent||16. "Stoneheart (Origins - Part 2)":||Appears|
|4. "Timebreaker":||Absent||17. "Animan":||Background|
|5. "Copycat":||Absent||18. "Simon Says":||Absent|
|6. "The Pharaoh":||Absent||19. "Pixelator":||Absent|
|7. "Lady Wifi":||Absent||20. "Guitar Villain":||Absent|
|8. "The Evillustrator":||Absent||21. "Kung Food":||Absent|
|9. "Rogercop":||Absent||22. "Gamer":||Background|
|10. "Dark Cupid":||Absent||23. "Reflekta":||Absent|
|11. "Horrificator":||Absent||24. "The Puppeteer":||Absent|
|12. "Darkblade":||Absent||25. "Antibug":||Background|
|13. "The Mime":||Absent||26. "Volpina":||Appears|
|Miraculous: Tales of Ladybug & Cat Noir Theme Song:||Absent|
|1. "The Collector":||Appears||?. "Style Queen":||Unknown|
|2. "Prime Queen":||Absent||?. "Queen Wasp":||Unknown|
|3. "Despair Bear":||Absent||?. "Malediktor":||Unknown|
|4. "Riposte":||Absent||?. "Troublemaker":||Unknown|
|5. "Befana":||Absent||?. "Frozer":||Unknown|
|6. "Robostus":||Appears||?. "Rossignoble":||Unknown|
|7. "The Dark Owl":||Absent||?. "Gagotor":||Unknown|
|8. "Gigantitan":||Absent||?. "Syren":||Unknown|
|9. "Glaciator":||Absent||?. "TBA":||Unknown|
|10. "Sapotis":||Appears||?. "TBA":||Unknown|
|11. "Gorizilla":||Absent||?. "TBA":||Unknown|
|12. "Captain Hardrock":||Absent||?. "TBA":||Unknown|
|13. "Zombizou":||Unknown||?. "TBA":||Unknown|
|"A Christmas Special":||Absent||"The Chinese Legend":||Will Appear|
|"Ladybug in Halloween":||Unknown|
Comics and books
|"Issue 1":||Absent||"Issue 5":||Unknown|
|"Issue 2":||Appears||"Issue 6":||Unknown|
|"Issue 3":||Absent||"Issue 7":||Unknown|
|"Issue 4":||Absent||"Issue 8":||Unknown|
|The Mini Menace Ladybug:||Absent||Ladybug PV:||Absent|
|First CGI promotional videos:||Absent||Korean musical:||Absent|
- In an old synopsis, Fu is described as the Guardian of the Orb, but Thomas Astruc denounced it as an older concept of him.
- At a licensing show in Korea, the Ladybug and Cat Noir journals were available. An attendee took a picture of a mysterious figure watching Marinette and Adrien in the park from a journal. When asked who the figure was, Wilfried Pain replied that he is Master Fu.
- Fu is 186 years old, making him the oldest known human character in the series.
- His longevity is not linked to his Miraculous, but to his lifestyle.
- Fu is the only known Miraculous holder to not have been seen transformed.
- Currently, he is the only human to know the identities of both Ladybug and Cat Noir because he gave them their Miraculouses.
- Fu will make an appearance in "The Chinese Legend", although his role in the special is unknown.
- As of "Sapotis", Hawk Moth is aware of Master Fu's existence as a guardian in Paris.
- He is not, however, aware that Master Fu is the guardian.
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