Can’t you just do the year of his birth divided by 4?
It is currently year 850 in the SNK world (unless I’m mistaken, someone please correct me quick!)
Connie is 15.
850 - 15 = 835, Connie’s birth year.
835 / 4 = an uneven number, therefore Connie’s birthday cannot be on a leap year.
D:
…/weeps
/makes Connie’s birthday the 28th

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