But Reimu has been playable since PC-98 era. That means seniority.
So was Marisa.
If it's by game release, Reimu is playable in 1 Marisa is boss in 2, playable in 3 Sanae is boss in 10, playable in 11 Reisen is boss in 8, playable among many others in 9, and finally playable in 15.
If anything, Reisen should be in the same year as Sanae, if not older.
I will not lose, you demon coach!Munakata ZUNFirst Year, Reisen.Aah! Master!Enough! Next!Third Year, Hakurei.
Second Year, Kirisame.
Second Year, Kochiya.
And one more,I will now announce the players who qualified for the playable character tournament.What's wrong? You're weak, Yagokoro!I will avenge the master!Eeegh!