Wait a minute... golden mask, sexy chest exposed... Bruno, is that you?
Oh, it's just Sasaki Kojiro wearing Mozart's mask. Nevermind.
Still, I can't be the only one who immediately thought of Bruno from Fire Emblem Heroes when "Island Mask" showed up.
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*Eventually finishes the main story in Fate/GO's Summer Event Part 1*
*Sasaki Kojiro mentions he should play some Hanafuda to kill some time as they ride the escape ship out of the deserted island*
Cu Chulainn:
Hold up, did Cu just reference that one Carnival Phantasm episode where everyone was playing Hanafuda with each other?
Wow, I can't believe Cu actually alluded to it! What makes this allusion even funnier is how oddly open to the idea he is at playing it despite his prior Hanafuda experience not being a pleasant one (a.k.a. Emiya destroyed him in that match).