姉が剣聖で妹が賢者で (Series) favorite_border

[DeepL Translation - needs review] Volume 1 Introduction: L'Arc is a meritocratic nation. Razel, the weak son of the king, is banished. Even though he is exiled, he tries to become an adventurer in another country with his own positive attitude, but his sister, who is the strongest of all, comes after him!

(Translator: DeepL)