 Hibari Ōzora ( 大空 <unk> , Ōzora Hibari ) is the titular character of Stop ! ! Hibari @-@ kun ! ! . Hibari is a high school student assigned male at birth who looks and behaves as a girl , much to Ibari 's <unk> 2 , 4 , 8 Hibari prefers being referred to as Ibari 's daughter , Ch . 6 , 8 , 15 and has expressed an interest in having <unk> 6 According to Suzume , Hibari becomes more feminine after Kōsaku starts living at the Ōzora <unk> 8 Hibari show an interest in Kōsaku early on , Ch . 9 and continues to make advances toward him throughout the <unk> 17 , 22 , 35 Hibari gets bolder as the series progresses , including openly flirting with Kōsaku at school , Ch . 37 and kissing him.Ch. 18 , 48 , 51 Hibari is extremely athletic and intelligent , in addition to being physically strong despite Hibari 's relatively small body <unk> 5 , 7 , 8 , 22 Hibari is voiced by <unk> <unk> . 
