The fact they gave Iruma the task to make some else king was too easy. caues he is gonna do it without thinking anyway saying that "it would be better this way" even if he were to fail the test. but having clara and azaz with him just make it more fun
I love stories like this where the parents and siblings of the the adopted child love the child soo much that they turn into fools ε=ε=(ノ≧∇≦)ノ