A Touhou character (alt. spelling Maribel Han, or Maryberry Hearn; usually shortened to just Merry).
One of the main protagonists of ZUN's Music Collection. She is a psychology major living in the outside world with the ability to see borders of any kind, including the one that separates our world from Gensokyo. She is the other member of the Hifuu Club and, together with her friend Usami Renko, dedicates themselves to the secret purpose of finding a way into Gensokyo.
Specializing in relative psychology, Maribel sees things more relatively and subjectively than her friend.
Due to both characters having boundary-related abilities, as well as a degree of visual resemblance, fan theories abound about a possible connection between Maribel and Yakumo Yukari, with some even going so far as to suggest that they are somehow the same person - the most common theory being that Maribel somehow cast herself backwards in time and ultimately aged into Yukari as she returned to her original era "the long way". ZUN's own comments on the pair pointed fans towards the writer Lafcadio Hearn, who moved to Japan and was naturalized with the name Koizumi Yakumo.
