Senzai firsts appears during the intro of Chapter II, similarly to his first appearance in Chapter I. After being dragged down to Enzukai's Seal and walking in, Isamu finds himself before a frozen Senzai who eerily calls out his name, causing Isamu to run up towards Senzai. Before he can touch him, Isamu wakes up from his dream in the Deep Ocean, unable to interact with the mysterious man.