Comment by Kuzuki on My Cutie Pie -An Ordinary Boy And His Gorgeous Childhood Friend- 〘Official〙 - Chapter 14

@Kuzuki same doubt

@Kuzuki The top is prob 18

@Agatha yeah, so basically naho is a minor and kana is not

@Heather they're both minors, naho mentioned in previous chapters that he is two years younger, he's 15 and Kana is 17.

@B.a.M ohh, I assumed kana was 18 because he is in college

@Heather not yet, he is going to college soon tho

@Agatha   I mean most of the time you graduate at 17, people who graduate at 18 usually have an extra year of education, or were born earlier in the year. Even then it's still legal within 4 years, technically more if it's not sexual. The normal age range that's accepted without discrimination is 2 years. Though 16-17 and 19-20 is also usually accepted since they're older on the scale.