This is averted in Atelier Meruru Plus, where one of the endings has her revert to her real age.
Simple Staff: Uses nicely decorated ones as her weapons of choice, Also serves as her symbol as an alchemist (Her original staff was a feature on the sign for her Atelier).
Shapeshifter Mode Lock: She never returns to her normal age in any of the endings of Atelier Meruru, even the ones that involve her growing back up, as she only returns to being 14 years old. The Plus version fixed this by adding a new ending where Rorona returns to her normal age, however.
Rorona's closest friend. She comes from a rich family, but doesn't like it when others bring that fact up. Cory also doesn't like it when she's teased about her short stature. She is the first one to join Rorona on her adventures.
Becoming the Mask: In her ending when she becomes the workshop's manager and Rorona declares she isn't much different from Astrid.
Spoiled Sweet: Despite being incredibly wealthy, she doesn't think much of it. In fact, her character events revolve around her giving out easy requests for Rorona and granting her large sums of money as a reward.
A chef who works at the Sunrise Cafe. He's usually a courteous young lad, but he becomes Hot-Blooded whenever cooking is involved. After Rorona goes out on her first adventure with Cordelia, Iksel decides to help Rorona out with her assignments, as well.
A knight who works at the palace, and is responsible for giving Rorona her assignments. He tries to act serious most of the time because he believes it's how a knight should behave. Sterk joins Rorona after she successfully completes her first assignment.
Took a Level in Badass: Seems to get progressively more badass in every installment. Taken up a notch with his finisher. Also, according to an event in the third game, he's shown to have become badass enough to nearly become Gio's equal (if Gio's comments after the fight are anything to go by).
BFS: It's still pretty realistic compared to other examples, though.
The Cameo: A sign of Gust being owned by Koei Tecmo, Sterk appears as a playable character in Warriors Orochi 3 Ultimate.
Twice Shy: With Rorona, assuming you aim for his flag of course.
UST: Poor Sterk. By the end of Atelier Meruru's True Ending, Rorona is never cured and he'll get older and older...and there's no sign he'll going for Astrid or Esty. Of course, the fans just ignore it.
What the Hell, Hero?: Gives one to Astrid for making Rorona do all of the work on the assignments the king had intended for her.
When He Smiles: Totori even comments that he has a nice smile after she meets him a second time.
Mooching Master: Oh, is she ever. She will not lift a finger if she can get Rorona to do something instead. And if she can bust her chops while she does it, all the better. She's basically an internet troll turned into a game character.
Mundane Utility: She can bend the laws of physics via alchemy to make... a bathing suit for a ghost. Lampshaded by Rorona, of course.
The One Guy: Male Hom, who's the only male presence in the workshop as well as the beach event. Taken Up To Eleven in Atelier Meruru, where he's the only male residing in a workshop alongside four other girls.
An energetic blacksmith who works next door to Rorona's workshop at the Beefy Weapon Shop. He primarily makes weapons and tools for men, so he teaches Rorona how to craft her own after she completes her first assignment.