At first, Kenji comes across as a spoiled and haughty yet simple-minded teenager. However, it later turns out that this attitude serves to hide and compensate for his personal insecurities that he feels very lonely as a rich man's son and doesn't see his father much. On the island, he is also lazy and stays away from the work that must be done for the group to survive. But as the series progresses, he's genuinely keen to help and wants to be helpful while still keeping a slight arrogant side, wh