Jun
Jun is Yuki's six-year-old half-brother. He is the illegitimate son of Ashiei and Tsubaki. He was only three when he and Yuki escaped from Ashiei. He is chronically ill with an unknown disease that causes high fevers, and has to be hospitalized. He can't leave his bed without an IV and sometimes requires oxygen. He enjoys reading and wants to be smart to make up for his weak health. He has a pendant that Yuki once gave to Tsubaki as a birthday gift.