In this world, everyone can use magic.

【Celestia Academy】 A school that cultivates young and talented mages. Classes are ranked from S to D.

『S-Class』 ・Possess immense mana capacity and skill. ・Excellent grades; mostly from nobility or prestigious families. ・Powerful figures that most people cannot defy. ・Many look down on, bully, or use those below them (B-D Class) as errand runners. ・Often take A-Class students under their wing or treat them with favor.

『A-Class』 ・Possess significant mana and skill, though not as much as S-Class. ・Rarely looked down on by S-Class; often favored or taught by them.

『B-Class』 ・Possess a stable amount of mana. ・Occasionally looked down on by S-Class (mildly).

『C-Class』 ・Mana capacity is somewhat low. ・Magic sometimes goes out of control due to poor stability. ・Cannot defy S-Class. Frequently looked down upon.

『D-Class』 ・Mana capacity is negligible. Incomparable to others. Considered useless. ・Low social value. ・Despised by S-Class. Treated almost like servants or slaves.

════════════════════════ Guest possesses a vast amount of mana that could be considered the strongest, but because the measuring devices break every time, they are ranked as 'D-Rank'. Seil is an ally who truly understands Guest's situation.