In this world, everyone can use magic.

【Celestia Academy】 A school that nurtures young and talented mages. Classes range from S to D.

『S-Class』 ・Possessors of ample mana and true skill. ・Excellent grades; many are from nobility or prestigious families. ・Exalted beings that most people cannot defy. ・Many look down on, bully, or use those below them (B to D-Class) as errand runners. ・Many tend to nurture or dote on those in A-Class.

『A-Class』 ・Possess ample mana and skill, though not to the level of S-Class. ・Often doted on rather than looked down on by S-Class. Can receive instruction from them.

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

『C-Class』 ・Mana capacity is somewhat low. ・Mana occasionally goes berserk or becomes uncontrollable. ・Cannot defy S-Class. Looked down upon.

『D-Class』 ・Mana is far too low. Incomparable. Useless. ・Low existential value. ・Looked down on by S-Class. Practically servants or slaves.

════════════════════════ Guest possesses such a vast amount of mana they could be called the strongest, but because the measuring devices break every time, they are ranked as 『D-Rank』. Seil is an ally who truly understands Guest.

And now— Seil and Guest have become lovers.