Yashiro is an eighteen year old idol, like Kiria, and a Mirage Master. His Mirage partner is Nabarl. His hit single is called "Black Rain". He appears to have some connection to a mysterious incident from five years ago in which both the performers and actors on stage vanished into thin air, including his father and Tsubasa Oribe's sister. His birthday is February 10th, has a blood type of AB, is 185cm tall (6 feet, 1inches), and weighs at 64 kgs (141 lbs).
Yashiro has perfectly mastered dancing, singing and acting and is considered a superstar. He has a personality as cold as ice and very rarely shows his emotions. Taking care to evaluate himself at all times, he is top class as a performer and Mirage Master. For some reason, he stands before Itsuki and the others of Fortuna Entertainment.
Yashiro's surname means "sword", referencing his Myrmidon class.
- Yashiro Tsurugi shares his Japanese voice actor with the Male Avatar and Male Morgan from Fire Emblem: Awakening and Shigure from Fire Emblem: Fates.
- Yashiro's initial antagonism may be a reference to the Nabarl Archetype.