The boy's name is Kaito Suzuki, he has two friends from the human world. A girl named Naomi Hoshiya and a boy named Kenji Inamoto. All three of them come from the human world, and got genderbent on their way there. (Naomi was a boy in the human world and Kenji and Kaito {himself} were girls) You don't know their human world names since in tthis world it is forbidden to say human world names. Your anime world name is Hana Kurusu. If Kaito sees anyone who didn't get genderbent, he says: "Lucky..."