Ultimate double A-side single of the hit game "Fate/Grand Order", which has been downloaded by 50 million people around the world, coupling the theme songs of both the theatrical anime and game app. With "Dokuhaku", Maaya teams up with Takahito Uchisawa (androp), who wrote and arranged "Replica", and with "Yakudo", she collaborates with a popular rock band "Yourness". For both songs, Maaya Sakamoto herself wrote the lyrics, in which both are truly masterpieces perfectly depicting the world of "Fate/Grand Order". Maaya Edition includes a self written and composed new track "Itsuka Tabi ni Deruhi"on the third track. Cover artwork features Maaya.