She is Black Starís Dark Demon Blade partner. She can change into multiple ninja weapons (shuriken, smoke bomb, a katana, etc). She is most of the time disheartened by Black Starís loud self but she still puts up with it because thatís what she likes about him. She has a very forgiving personality and always tries to help everyone even when she has no idea how to help. Tsubaki's soul is ďvery co-operative and has a lot of space to accept peopleĒ as said by Dr. Stein.
Yes. A fanclub dedicated to our hardworking tool weapon. The girl whose heart can connect with anyone, Tsubaki.