Nyafu! can be obtained by having Helena Blavatsky (Archer) reach Bond Level 10.
When equipped to Helena Blavatsky (Archer), increases Quick & Arts Card effectiveness by 10% for all allies, while Helena Blavatsky (Archer) is on the field.
Nyafu! is an exclusive Craft Essence to Helena (Archer).
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
5 Star Servants Tier List: Best Servants [5/9 updated!]
Best Servants [★4]: 4 Star Tier List
Altria Pendragon (Archer)
Black Holy Grail (The Black Grail)