So I never had this problem because I never had character with kiho before. Anyway, if a character activate a kiho using for example the earth ring, can the same character attack the next turn using another ring but still having the bonus of the kiho activate the turn before?

3 hours ago, Victarion13 said:

So I never had this problem because I never had character with kiho before. Anyway, if a character activate a kiho using for example the earth ring, can the same character attack the next turn using another ring but still having the bonus of the kiho activate the turn before?

Yes, it works. The enhancement effect lasts even if you switch stances in later turns.