 Having joined ZECT to avenge his younger brother Ryou Kagami, works with Hiyori at Bistro La Salle, Arata has a good heart but is impulsive oftens act without thinking.In the previous timeline, Kagami married a Hiyori Kusakabe before helping Tendou alter the timeline so the damage caused by the Worms' meteor would be minimized in Shibuya.In the new timeline, Kagami meets Tendou all over again when the latter claimed the Kabuto Zecter that he was to upon its completion.