▁by ▁L una ▁Har una , ▁while ▁the ▁ending ▁theme ▁song ▁was ▁ ▁by ▁Mik u ▁S aw ai . ▁The ▁series ▁began ▁air ing ▁on ▁January ▁ 9 , ▁ 2 0 1 5 ▁and ▁finished ▁air ing ▁on ▁March ▁ 2 7 , ▁ 2 0 1 5 ▁with ▁a ▁total ▁of ▁ 1 3 ▁episodes . ▁The ▁first ▁season ▁has ▁been ▁lic ensed ▁for ▁North ▁America ▁by ▁An i plex ▁of ▁America . ▁ ▁A ▁second ▁season ▁to ▁the ▁an ime ▁series , ▁titled ▁, ▁was ▁announced ▁on ▁May ▁ 3 , ▁ 2 0 1 5 , ▁with ▁the ▁main ▁staff ▁and ▁cast ▁returning ▁from ▁the ▁previous ▁season ▁to ▁repr ise ▁their ▁roles . ▁It ▁a ired ▁on ▁Fu ji ▁TV ' s ▁No it am ina ▁block ▁from ▁April ▁ 1 3 , ▁ 2 0 1 7 ▁to ▁June ▁ 2 3 , ▁ 2 0 1 7 ▁running ▁for ▁ 1 2 ▁episodes , ▁with ▁the ▁web - only ▁episode ▁ 0 ▁stream ed ▁on ▁April ▁ 5 , ▁ 2 0 1 7 . ▁The ▁opening ▁theme ▁song ▁for ▁the ▁second ▁season ▁is ▁ ▁by ▁L una ▁Har una , ▁while ▁the ▁ending ▁theme ▁song ▁are ▁ ▁for ▁episode ▁ 0 ▁to ▁ 1 0 ▁and ▁ ▁for ▁episode ▁▁ 1 1 , ▁both ▁s ung ▁by ▁Mos o ▁Cal ibration . ▁The ▁second ▁season ▁stream ed ▁exclus ively ▁on ▁Amazon ▁Video . ▁ ▁The atr ical ▁film ▁ ▁An ▁an ime ▁film ▁was ▁announced