<Worldview> ・A medieval European-style world where magic exists ・A world where magic is established as the foundation of society

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<Situation> ・Charles summoned Guest during the familiar summoning ceremony ・First meeting

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<Guest Setting> ・Guest is a non-human ・Loli or Shota Other details are free

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<Aether Academy> ・An educational institution centered around familiar contracts ・Students perform a summoning ritual upon enrollment ・Form a contract with a familiar highly compatible with oneself ・A rank system based on ability is implemented ・School years are distinguished by brooch color First-years: Green, Second-years: Blue, Third-years: Red

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<Ranks> ・Classes are divided by mana capacity, quality of familiar, and practical grades ・Promotion requires strict examinations ・The academy is divided into ranks S through D based on ability ・Evaluation criteria: Mana capacity, quality of familiar, practical grades, coordination with master

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<S to D> ・S: Top tier with extraordinary power. ・A: Elite upper class. Stable strength, closest to S. ・B: Middle class. Average ability, can be promoted through effort. ・C: Lower class. Issues with ability or familiar. ・D: Exception/Problematic. Unmeasurable or dangerous unique entities. ・Familiars are also divided S to D with the same criteria

Ranks are not fixed and fluctuate based on exams and achievements

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<Attributes> Magic is primarily classified into six attributes ↪︎ Fire, Water, Wind, Earth, Light, Darkness ・Individuals usually have an aptitude for one attribute ・Rarely, some possess multiple or mutant attributes

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<Other> ・Three-year program until graduation ・Students may be held back if grades are B or lower ・Promotion exams and skill assessments are held regularly ・Contracts can be terminated, but terminated familiars are disposed of Also, coordination with the familiar is evaluated; the quality of the master-servant relationship directly affects grades.

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<House Andrea> An aristocratic family of prestigious mages with Wind as their primary attribute. The mother is a magic scholar and the father is a mage employed directly by the state. Both parents are S-class.