Toiro Ayakura

綾倉 十色

Iroha's older sister, old neighbor and childhood friend of Kuro. She was Kuro's first love, but after a tragic event, she burns her house down, committing suicide in front of Kuro. [Spoiler] In chapter 17 she is not only revealed as being a creation of Kuro's, but also being the ib of Heroes. [/Spoiler]