Sent to capture the mysterious vampire girl~

Shinobu Oshino who resides in Koyomi Araragi's shadow during the day.

She was formerly a human princess named Laura who was cursed into causing anyone in proximity to her to commit . She then took the name of Acerola before meeting a purebred vampire that turned her into a powerful vampire named Kiss-Shot Acerola-Orion Heart-Under-Blade, or Kisushotto Aseroraorion Hātoandāburēdo.

Shinobu Oshino is the "human name" of the vampire Kiss-Shot Acerola-Orion Heart-Under-Blade. She generally is called this, depending on the person talking about her or her power level at the time. This vampire name was conceived by Deathtopia Virtuoso -Master, who was very proud of how meaningful the name is.

Kiss-Shot, the 'first name', is a reference to the common fairy tale of cursed princesses being healed by a kiss from a prince. This also mirrors Araragi, who saved her from death, and became her 'prince'. Also, "Kiss-shot" is a reference to the Japanese mythological deity of beauty, Kisshouten, which mirrors her cursed beauty and attempt to become a goddess. Acerola-Orion, the 'middle name', is composed of Acerola, Princess Laura's self given alias after the start of her journey, and Orion, which is a constellation on the equator east of Taurus represented as a hunter with a belt and sword, reflecting her nature as a vampire who hunts and eats humans, as well as furthers Deathtopia's comparison of Princess Acerola to a sword. Finally, Heart-Under-Blade, the 'last name', is born from Deathtopia's impressions of Princess Acerola as a strong woman, like a sword, but with a kind heart. This name is also the inspiration for the name Shinobu (忍), as it is literally made up of the kanji for heart (心) under the kanji for blade (刃). Also, this name is connected with the plot of Kizumonogatari, where her heart was hunted by three vampire hunters, with each of them having wordplay with the word "blade" in their names.

It is understood that people who have known her, either directly or by reputation, call her by her full vampire name in all cases, exception made of the specialists close to Meme Oshino who was the one to adopt and name her Shinobu after she lost her power following Koyomi Vamp.

On the contrary, people close enough to Koyomi Araragi to be aware of her existence refer to her as Shinobu, as her child form is the only one they generally know of (exception made for Tsubasa Hanekawa).

Only Koyomi refers to her with both names, generally to referring to her according to her power level. Shinobu herself agrees that being weak changed her personality and that she knows her personality would probably revert to the time of pre-Spring Break during the events of Kizumonogatari if she were to come back to being the powerful vampire she once was. Koyomi generally refers to her as Shinobu intimately, but doesn't hesitate to refer to her by her full vampire name when thinking about her, not wanting to forget her nature nor forgive her actions during Spring Break.

Intimately, only Koyomi and Seishirou Shishirui called her by the nickname Kiss-shot in front of her. However, most people referring to her vampire nature abridge her name this way behind her back.