[[Umamusume]] character and resident shortstack of the series.

Marvel is easily excitable and regularly peppers her speech with the word "marvelous" as an allusion to her name.

h5. Examples
* !post #6146336: [[Tracen School Uniform]]  
* !post #7608222: Racing Outfit 
* !post #3076168: Race Outfit (Draft)
* !post #5368107: [[starting_future_(umamusume)|Starting Future]]

h5. Skins
* !post #6192432: [[marvelous_sunday_(marvelous_chocolate_show)_(umamusume)|Marvelous Chocolate Show]]

h5. Associated characters

* [[Mayano Top Gun (Umamusume)|]] - Friend
* [[Nice Nature (Umamusume)|]] - Roommate
* [[Narita Brian (umamusume)|]] 
* [[Sakura Laurel (umamusume)|]] - Friend


h5. External links

* "Umamusume Official Character Bio: Marvelous Sunday":[https://umamusume.jp/character/marveloussunday]
マーベラスサンデー(ウマ娘) マーベラスサンデー