Carpaccio's obsession to Caesar is beginning to look dangerous
Based on their interactions in the manga (Hina/Carpaccio with Taka/Caesar, as well as with Team Hippopotamus), and in the web version (both canon), the fandom, as well as the web version's author, Nanashiro Gorou, have determined that "Hina-chan" is a Yandere, and her love for "Taka-chan" (bordering on obsession) is currently kept as a joke and part of her personality (which the fandom and author have "constructed" for "Hina-chan").
However, if we follow that line of thought, we could also consider Erika with Maho, and Akaboshi Koume with Miho (based on the fanfiction-style mangas created by the community).
The difference is that with "Hina-chan," they are defining it as a "relationship" (which isn't really a relationship, but is... due to the needs of the plot) of the Yandere type.
