Arc 1The First Night of War
Tokiomi summoned Mayuri, whose power shaped the first night of the Holy Grail War and drew the other Servants into a harbor standoff. After Artoria defeated Lancelot and killed Kariya, Mayuri rescued Sakura, while Kayneth prepared to withdraw Sola-Ui and reached out to Waver.
- Tokiomi Tohsaka summoned Mayuri, who identified herself as the Angel of Wisdom Cherub and described her powerful Noble Phantasms.
- Tokiomi and Kirei staged an attack by Hassan of the Hundred Faces so Mayuri could display her power and make Kirei's withdrawal from the war seem credible.
- Artoria and Diarmuid fought at Fuyuki Port until Iskandar and Gilgamesh arrived, and Mayuri revealed herself as a fifth Servant.
- Berserker attacked Mayuri, who fought him with the Thunder Sanctuary before Kariya's failing mana forced him to retreat.
- Artoria attacked the Matou residence, defeated Berserker, and used Avalon to survive Lancelot's final strike as his Spirit Origin collapsed.
- Artoria killed Kariya, but Mayuri rescued Sakura from the ruins with the Thunder Sanctuary in vulture form.
- Kayneth sent Sola-Ui away from Fuyuki, addressed the damage around the Matou residence, and sent Waver a letter offering him safety if he withdrew.
- Mayuri met Gilgamesh in Fuyuki's shopping district, and Iskandar and Waver joined them.