Jean-Jacques Chastel

Jean-Jacques Chastel (ジャン＝ジャック・シャステル, Jan Jakku Shasuteru) is a character from Jun Mochizuki's The Case Study of Vanitas. He is the protector and longtime companion of Chloé d'Apchier, the last surviving member of the d'Apchiers, living alongside her in the district of Gévaudan rather than in Altus with those of his race. He swears to stay by Chloé's side no matter what, even as she willingly contracts a Malnomen to fulfill her wish.