Tsubaki Nakatsukasa is the love interest of Black Star from Soul Eater. She is also her partner. She is the opposite of Black Star. She puts up with Black Star's antics and apologizes on his behalf. However, deep down she really cares for him and has feelings for him. She acts like a mentor to him, including helping him with school work and acts like a proud parent towards him. Tsubaki also becomes upset if Black Star gets hurt. She is usually Passive towards him. She also shows regret for letting Black Star get involved in her fight between Masamune, thinking that she is using him and manages to defeat Masamune. She continues to be Black Star's partner. She seems to understand him.