The Doubt
After the first fight, the group continued to the next path according to Kai's plan, defeated every single magical beast silently, and made their way toward the Ross River. In the meantime, Eagle Group finally realized the difference between them.
Kai's manipulative mind and overpowered hearing ability had truly increased the Lion Group's strength to an unprecedented level. In fact, even the first ranked group in the school couldn't be compared to the Lion Group. The only reason why Lion Group didn't come on top was because of their starting point.
Had Kai become a student from Middle School and built the group, the Lion Group would be the first group for as long as he was in the school, and no one would be able to question it.