Gringolet can be obtained by having Gawain reach Bond Level 10.
Gringolet is an exclusive CE to Gawain.
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
Merlin
Best Craft Essence: Craft Essence Tier List
Minamoto No Yorimitsu (Lancer, Summer 2017)
Edward Teach
3rd Singularity: Okeanos
Grand Puppet Master (Grand Puppeteer)
Ereshkigal
Arthur Pendragon(Prototype)
Gorgon
Black Holy Grail (The Black Grail)