When the kunai flew past Anzu, Vale then said; "Angry bee technique." Then he suddenly spread his crouched figners and explosive chakra surged from his fingers! Like tendrils it flew on the kunai and suddenly split single kunai into five smaller kunai's! Then as name tells like angry swarm the kunai's start quickly dive and dash around Anzu, try scratch and hit her! Now Anzu sees the true trick in Vale's attack; he used variant of 'shadow shuriken' technique hide all five kunai into one kunai and connect all kunai's to each finger tip with surgery string (string used to tie up wounds but it's made super strong for applicable variant uses like these) so he can control them with chakra! But what worse; true purpose of kunai's is not injure her....but tie her with the strings which have are made from wood spider web string and reinforched with chakra, give them strenght eguilevant to steel.