How are the candidates for the next head of Yotsuba decided?
How are the candidates for the next head of Yotsuba decided?
There really isn't much of a criteria except for being very strong in magic. Katsuhige didn't have any MI abilities, but he was still a candidate for potential successor. I don't remembr exactly how they where chosen to be candidates. They're all from the latest generation of Yotsuba, but even if you exclude Tatsuya there was still Ayako who is a powerful magician. So I don't remember if it was mentioned how exactly they became candidates, but I remember that Maya and the Yotsuba elders/heads of the branch families talk about it and help make the decision. Although, Maya ultimately has the final say so on who the next leader will be. I hope this helps, somebody else might know how they are chosen to be candidates.
first of its clearly stated in volume 16 that having MI magic is not an iron clad rule of becoming yotsuba head. The head of the yotsuba is the one who posses the strongest magic in the family, in order to choose the next head of the family. the Current head gathers those who posses the strongest magic of the next generation and the strongest one among them wins. Ayako was not considered because although she is an exccellent magician, her magic is better suited for infiltrations and support unlike all the candidets right now who are frontline combatants. I hope that answered your question