The recent eighth episode of A Certain Magical Index, in addition to a naked Index, brings with it what is said to be a Idol Master cameo with three of the Idols appearing as not so non-descript extras in a cafeteria reaction shot.
The characters featured are said to be 天海春香 / Haruka Amami, 如月千早 / Chihaya Kisaragi and 三浦あずさ / Azusa Miura. Haruka’s Xenoglossia seiyuu and that of Index are in fact one and the same person, 井口裕香 / Yuka Iguchi.
However, not all are fully convinced, so some closer examination is in order:
Let us pool our scrutiny: