Oshino, casually took out 'something' from a pocket of the aloha shirt, and he tossed it at me. That should have been a pocket that contained cigarettes -- therefore I thought he threw at me a pack of cigarettes, but that was not the case. However, even so, that pocket in the aloha shirt worn by Oshino should not have been a pocket that could contain something that big.
That.

Made up with deep red flesh -- was a heart.

"Eek......!"

I involuntarily cowered, and the thing I caught with both hands fell on the ground -- somehow it petrified me to this extent.

I was petrified, it means I have become unable to move.
However in contrast with the me who was unable to move--
that heart kept beating with a lub-dub lub-dub.

“That’s the heart of Kissshot-Acerolaorion-Heartunderblade.”
Oshino said.

"Without that heart, she battled the specialists of vampire exorcism one-on-three -- it's very clear why her limbs were cut off."

"............!"

It's natural.

Even I can understand that the power of vampires is specifically the blood -- without the heart that is the pivot that sends out that blood, it's a wonder she ended up just with losing her limbs.

"......And she didn't even notice."

[...]

"The one who stole the heart was not Guillotinecutter."

"Eh? What do you mean? That Dramaturgie or Episode stole the heart and Guillotinecutter was taking care of it?"

"Oh no no no, it was neither Dramaturgie nor Episode."

"Then who?"

Don't tell me that there could be a fourth specialist of vampire exorcism coming here, such thought made a chill run down my spine -- however, Oshino's reply was the following word.

"Me."

"............"

Words won't come out at the moment.
There were a few remarks that came into my mind, however I felt all of them were inappropriate in this situation, and I gulped them down. Thereupon Oshino, without being begged for, starts to explain -- they were theatrical elocutions typical of the villain of a historical play.

"To begin with, I just happened to pass by -- I was tottering the streets at night, and there was a vampire possessing a power so formidable it's not even fun. I easily imagined that was the Kaii Killer -- so *in order to bring a balance*, I extracted that heart in advance."

(Kizumonogatari, ch. 14)