"Kaleidoscope Eyes" Various Vocaloids x Vocaloid! Reader

(y/n) Megurine, a beauty in both abstract and concrete matters happens to be a newly created Vocaloid, a talented one is she. Not only was she made to represent well-known Luka Megurine's younger sibling, but had quickly developed the talent to speak as well as perfect foreign languages other than her own Japanese origins. Like the eldest sibling, (y/n) also maintains a ladylike posture and share's the trait of being "mature" and "levelheaded". Unfortunately, she also attained her sister's curved figure, which causes much blood loss to male and female alike. Perhaps the main thing that separates (y/n) from the other Vocaloids is her kaleidoscope eyes. Alas, when the Vocaloid family gladly invites her with open arms (not counting the ones who didn't) she is perplexed as to why they wouldn't see her differently, being that she thought her eyes where hideous. What is worse is that everyone seems to be in a game of some sort.
What game would that be?