Ibari Ōzora ( 大空 いばり , Ōzora Ibari ) is the boss of the Ōzora Group , a yakuza organization.Ch. 1 As the father of Tsugumi , Tsubame , Hibari and Suzume , he want the Ōzora Group to be family @-@ oriented.Ch. 4 Ibari is extremely distressed by Hibari 's usual behavior , partly because Hibari is his only choice to inherit the Ōzora Group.Ch. 2 He have a weak heart and frequently get attacks whenever he is overly excited or shocked by something.Ch. 2 , 4 , 8 , 28 Ibari had been in love with Kōsaku 's mother , but she ended up marrying a Matagi hunter.Ch. 19 Ibari is voiced by Jōji Yanami .