wait what age is 5th grade? i seriusly need like a chart with ages and grades, coz sometimes in other mangas they tell stories about X thing that happened during #grade and im like confused coz i dont know how old they were and how much time has passed, like i think middle grade goes from 12 to 14 and high school age is like 15 to 17? but if thats the case what about eleventh grade? coz i remember that from another manga.... fuck if i know, pls help.