[Icerack]

Spoiler:

Sorry, the first part was refering to what Matsuri said to Yorito, which was close to the end (not at the very end). What Matsuri said to Takeshi was asking how to use his sword and I remember that clearly as that was the punch line that ended the episode.

My guess about the sword is that she intends to trade her life to save someone elses.

Also, did anyone hear Matsuri say that it was "her fault" during the flashback scene? Or was that just Aono mumbling random stuff to herself?