Complex sentence: The first four stages depict the characters'journey to the castle, when they arrive Kakira distrusts the other character's motives and challenges Samson to a dual to prove his worthiness (in typical anime fashion).
Split into simpler sentences: The first four stages depict the characters'journey to the castle. When they arrive, Kakira distrusts the other character's motives and challenges Samson to a dual to prove his worthiness (in typical anime fashion).