Shiro no Sho - 白の書

A hovering, talking magical tome that travels with [Nier](https://anilist.co/character/138303) and serves as his medium to magical spells known as Sealed Verses, in the hopes of collecting all of them to cure Nier’s sister, [Yonah](https://anilist.co/character/138305/Yonah). ~!Originally a human male, he was absorbed into a grimoire after being subjected to experiments by the Hamelin Organization.!~