Tank Chair 4

(W/A) Manabu Yashiro. The parapsychic duel between Nagi and Sensei on Guicheng Island is over* leaving the physical and mental landscape an utter ruin. Now our attention turns suddenly to three years in the past... Here* Nagi is Sensei's prize student* a prodigy whom no classmate can match. What events led to Nagi and his sister fleeing the academy and incurring the wrath of the world's deadliest being?