When Samuel Nakaoka touches Amara's breasts who revealed to be a girl, she angrily transform Singular Rider S into Sailor Scout.
Post-ZEXAL[]
Despite to Reginald's death in hands by an angered Samuel Nakaoka for killing Nagisa, he still used his Sailor Scout form in order to tortures Kumon Kai.
Because of Samuel Nakaoka's anger and guilt for his wife's death, his Sailor Scout powers are temporarily lost, but returned to him only he transfers to Leona West as Sailor Scout.