The secret of Tetel is revealed!? Intervening in tribal disputes!? In a nature-rich mountain village, the strongest beautiful girls are having a blast! Tetel, who attends a magic school, is a girl known for her robust health and energetic personality. However, one day, she suddenly becomes unable to move. It seems that the special constitution of the Navira tribe is still shrouded in mystery, and it is suggested that she should be examined by a specialist in her hometown. Thus, Ferris and the others decide to escort Tetel back home. As they navigate the treacherous mountain paths, they finally reach the Navira village to gather information. However, they learn that Tetel's health issues are tied to the tribe's secrets, and they are unable to find out the cause. Nevertheless, unable to abandon their friend, Ferris and the others can't just sit idly by and secretly follow the elder. What they find at the elder's destination is a massive pillar that stretches up to the heavens, known as the 'Tree of Wisdom'.