I get confused by the age of each characters...
Cause in the wiki they all are 18- (only Tatsuki seems 19...)
There are some changes? Or they are still underage? (Outside of Japan)
Viewing post in Homecoming ~Morenatsu Revisited~ comments
All characters were changed to be juniors and seniors in high school from what I heard; since it is apparently common in Japan (Due to how their school year starts and ends at different points in the year than the west) for Juniors to turn 18 their junior year and for seniors to start the school year 18 and turn 19 before graduating.
So nobody is underage anymore.