, ▁which ▁deb uted ▁in ▁E pisode ▁ 7 3 . ▁▁ ▁( spe aking ▁voice ), ▁M iki ▁from ▁A IK AT SU ☆ ST AR S ! ▁( sing ing ▁voice ) ▁Deb uts ▁in ▁episode ▁ 6 ▁of ▁the ▁an ime . ▁A ko ▁is ▁a ▁student ▁from ▁the ▁Bird ▁D rama ▁Class . ▁She ▁is ▁highly ▁and ▁right fully ▁confident ▁in ▁her ▁ab ilities ▁as ▁an ▁actress ▁and ▁at ▁first ▁sight ▁seems ▁to ▁be ▁calm ▁and ▁collected , ▁but ▁is ▁actually ▁easily ▁fl uster ed , ▁temper amental , ▁and ▁has ▁a ▁t endency ▁to ▁act ▁like ▁a ▁cat ▁and ▁attack ▁people ▁when ▁angry . ▁She ▁appears ▁to ▁have ▁a ▁rather ▁obs ess ive ▁cr ush ▁on ▁Sub aru ▁Y uki , ▁a ▁member ▁of ▁the ▁top ▁male ▁id ol ▁unit ▁M 4 , ▁and ▁becomes ▁je alous ▁towards ▁other ▁girls ▁who ▁interact ▁with ▁him ▁( nam ely , ▁Y ume ). ▁A ▁Pop ▁type ▁id ol , ▁her ▁theme ▁color ▁is ▁l ime ▁green , ▁and ▁she ▁is ▁a ▁Bird ▁Theatre ▁Class ▁student . ▁A ko ▁becomes ▁one ▁of ▁the ▁ 2 6 th ▁generation ▁S 4 ▁in ▁E pisode ▁ 5 0 . ▁▁ ▁( spe aking ▁voice ), ▁Ru ka ▁from ▁A IK AT SU ☆ ST AR S ! ▁( sing ing ▁voice ) ▁One ▁of ▁the ▁ 2 5 th ▁S 4 ▁member ▁in ▁Season ▁ 1 . ▁She ▁is ▁two ▁years ▁above ▁Y ume , ▁and ▁Y ume ' s ▁favorite ▁id ol