The second Spirit saved by Shido. She has the appearance of a young girl around Kotori's age, with long blue hair and matching eyes. She has a very shy personality, depending on her rabbit puppet in her left hand, Yoshinon, most of the time for communication. She is a very docile Spirit, and does not attack the AST when they attack her, not even summoning her Angel, reasoning that if she does not like being hurt, they would also not like it. However when she loses [Yoshinon] she will be at a loss, and when attacked will summon her Angel, but only to defend herself. Shido meets her seemingly to be a lost child in the rain. After several encounters, Shido made the decision to protect Yoshino for her incredible kindness, and aid her to speak precisely for herself other than rely on Yoshinon.
Her Angel is Zadkiel, a giant rabbit puppet that she summons and controls with her right hand. It is capable of breathing out freezing air that freezes the AST members along with their territory. Other than her Angel, she is also capable of manipulating the three states of water, but is usually seen manipulating ice, however there is a tiny amount of Spirit Energy in each drop of the rain that appears whenever she manifests herself in this world. Her Astral Dress, El, consists of a green rabbit suit and a white petticoat. Her AST codename is
Yoshinon (????, Yoshinon)
A split personality that was born out of Yoshino's wish to not be alone and not have her powers hurt others. It is Yoshino's ideal self, as well as her friend. Unlike Yoshino, it speaks out with confidence and is prone to offending others. It acts as Yoshino's pillar of support, allowing her to keep calm enough to not attack others. It usually does the speaking for Yoshino, appearing to speak through ventriloquism by her doing, but their thoughts are independent of each other, and she has no control over what it says. Yoshinon's personality only comes out while Yoshino is wearing the puppet and both personalities consider the puppet to be Yoshinon. Yoshino is always the human shaped spirit Yoshino, Yoshinon is always the puppet so there are never any cases where Yoshinon takes over Yoshino's body, other than the arm holding the puppet, and Yoshino never becomes the puppet.