Family Tree of Jack-in-the-box

Jack-in-the-box's Parents

Slenderman ♂

1x1x1x1 ♂
Jack-in-the-box and Siblings

Fuuri Watanuki ♀
(Sister)

Jack-in-the-box ♀
(This Pet)
Jack-in-the-box's Children

Healergraft ♀