Ioryogi fell in 愛 with エンジェル who remind Kobato. The manga's 20th chapter has shown this エンジェル to have Kobato's hair, clumsiness, and wonderful 歌う voice, but her face was hidden. She sitting in a 木, ツリー and he helped her out when she fell. In return, she sang for him a song so sweet, he instantly fell in love. Kobato may be the エンジェル Ioryogi fell in 愛 with または a manifestation of that エンジェル that Ioryogi has sworn to protect.