As a reward for saving the kidnapped Princess Flora, Rio has been enrolled in the primary school branch of the Beltrum Royal Academy. However, the students at the academy are mostly the children of royalty and the nobility, and they do not welcome the orphaned Rio. With so many scornful gazes turned toward him, there is one person who worries for him—Celia, a girl of twelve who is nonetheless, at her young age, the lecturer in charge of the primary school. As Rio cannot read, Professor Celia begins privately tutoring him after school.
but I'd never have imagined that the 
dirty little brat from back then
لكني لم أتوقع أبدا أن الفتى المثير للمشاكل آنذاك
aber ich hätte nicht gedacht, dass dieses
dreckige Blag von damals mein Gegner sein würde.
jamás pensé que mi oponente sería
el mocoso mugroso de aquella vez.
Mais de là à ce que ce gamin crasseux
devienne un jour mon adversaire…
ma non credevo che il moccioso sudicio
incontrato quel giorno
mas não esperava que aquele
pirralho imundo do passado
но кто бы мог подумать, 
что грязный мальчишка