▁the ▁United ▁Kingdom ▁Category : B rit ish ▁military ▁av iation ▁Category : Mil it ary ▁units ▁and ▁form ations ▁established ▁in ▁ 1 8 8 8 <0x0A> </s> ▁, ▁is ▁a ▁Japanese ▁m anga ▁series ▁written ▁and ▁illustrated ▁by ▁H aj ime ▁Seg awa . ▁It ▁has ▁been ▁serial ized ▁by ▁K ad ok awa ▁Sh oten ▁in ▁the ▁magazine ▁Sh ō nen ▁A ce ▁from ▁ 2 0 0 5 ▁to ▁ 2 0 1 0 ▁and ▁collected ▁in ▁twelve ▁tank ō bon ▁volumes . ▁The ▁English ▁version ▁was ▁then ▁released ▁digit ally ▁on ▁Book W alk er ▁on ▁October ▁ 2 9 , ▁ 2 0 1 4 . ▁A ▁pre quel ▁an ime ▁series , ▁Ga - Re i : ▁Zero , ▁a ired ▁from ▁October ▁ 5 , ▁ 2 0 0 8 ▁to ▁December ▁ 2 1 , ▁ 2 0 0 8 , ▁which ▁details ▁the ▁back story ▁of ▁key ▁characters ▁K ag ura ▁and ▁Y omi . ▁ ▁Plot ▁ ▁K ens u ke ▁N im ura ▁is ▁just ▁your ▁average ▁high ▁school ▁student — except ▁for ▁the ▁fact ▁that ▁he ▁can ▁see ▁spirits . ▁This ▁ability ▁generally ▁h ind ers ▁him ▁more ▁than ▁it ▁helps ▁him , ▁especially ▁in ▁trying ▁to ▁get ▁a ▁girl friend . ▁However , ▁everything ▁changes ▁one ▁day ▁when ▁he ▁enc oun ters ▁K ag ura ▁T such imi ya ▁while ▁being ▁purs ued ▁by ▁evil ▁spirits . ▁They ▁accident ally ▁kiss ▁and ▁manage ▁to ▁destroy ▁the ▁source ▁of ▁energy