After she came close to the Desert Oasis Jewel, Ikra's failure to pass the Jewel's test of purity revealed her true nature as the embodiment of darkness. To get close to Jack, Aku played at enjoying Jack's company, partook in many adventures with him, and even saved him from drowning in quicksand instead of allowing him to die. As Ikra, Aku pretended to be portrayed as soft-spoken, cool, and elegant.