apple

there's been a few people in the past who have tried to insist that the age in the character's bios are the age they Will turn, or that there's "no proof" that they had their birthdays throughout the story (despite it following a linear timeline where we. know time is passing. crazy concept)

so it's nice to have words of confirmation from yana herself that the bios are the age the characters are during this year's entrance ceremony in September. Those born in September are the oldest of their respective year groups, and those born in August are the youngest!

which leads me to quickly say-

Had Leona joined when he was invited to NRC, he would have been one of the youngest in his year group. his birthday falls during the summer holidays, so he wouldn't have his bday during the school year. buuut because he joined late, and was held back a year during his 2nd year... well, you get the picture. he'll be 22 a little after he graduates!