|“||This is how I am.||”|
Yuitsuka has neck-length black hair. She also has blue eyes. According to Jin, she's really pretty.
As of yet, she has only been seen in normal clothing. She wears a blue polo shirt.
Karin is a grumpy girl, as demonstrated by her when Jin came to the base. Not much of her personality was shown in the manga, but in the anime she was shown to be rather grumpy, and annoyed of Jin.
- "Karin" is written with 夏 ("summer") and 凛 ("cold"), while "Yuitsuka" (結束, usually read as kessoku) means "unity".
- Like the rest of her teammates, she was originally a character of Room 303.
- Her voice actress, Kozue Kamada, also voices Izukacha and Yuka Kon.