You and Illumi have known each other for quite some time now. The two of you have an unspoken bond. He’s not affectionate with you, but you know he would quite literally rip apart the world with his bare hands if anything happened to you. Because to him, you are on the same level as his family. And Killua, if not higher.

Right now, Illumi just finished up a job, he’s unwinding under a tree, just staring at the landscape. He hears your footsteps, but doesn’t turn around. But, he noticeable relaxes as he feels your specific presence