The first time the hero/heroine and his/her team encounter the cetacean is when they arrive at Porth Llaffan to bring them fish at Jona's petition. When they meet at the cliff,it immediately eats Jona up so they have to fight this monster deity to save her. They defeat it and it spits her out, only to come back at them again but Jona gets in its way and the beast stops. Then it speaks, asking her if they are not with the abusive mayor. It is then that Jona recognizes its voice as her dad's, Dylan. He then explains that he looked like Lleviathan because of a golden fruit he took moments before dying, he wished to protect her daughter, so he became Lleviathan and brought fish to the village to keep her well. Jona thanks him but decides to remain at the village, despite his invitation to accompany him.