Sushi-roll pick with a serial code from the Sushiro and Genshin Impact collaboration. Card with an illustration of the character SAYU. - Character Name: SAYU - Collaboration: SUBARO x Genshin Impact - Design: Illustrated card Thank you for viewing. This is a sushi-roll pick with a serial code from the Sushiro collaboration. I don't play Genshin Impact, so the serial code is unused.