Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: An yi hira da asalin masu kirkirar Angel Beats!, Jun Maeda da Na-Ga na Key, a cikin fitowar Yuli 2009 na ASCII Media Works 'Dengeki G's Magazine. A lokacin da Key ya kammala fitowar farko na littafin su na shida na gani na Little Busters!, Hironori Toba na Aniplex (shi kansa mai son ayyukan Key) ya kusanci Maeda a kusa da Oktoba 2007 game da haɗin gwiwa don samar da jerin wasan kwaikwayo na asali. Maeda ta fara ganawa da Toba da Aniplex a kowane wata kuma labarin ya fara ci gaba a hankali. Aniplex yana son Maeda ya rubuta rubutun da zai zama "Key-like, tare da lokacin dariya da hawaye", amma da farko Maeda ya sami kansa cikin asara don rubuta labarin da ya fi ban dariya fiye da Little Busters!, saboda yana tunanin cewa ya kai iyaka tare da Little Busters! dangane da "Key-like story". Koyaya, wata rana Maeda ya sami wahayi, inda ya yi tunanin tunanin farko na labarin da aka kafa a bayan rayuwa. Bugu da ƙari, tare da duk wanda ya riga ya mutu, Maeda ya yi tunanin yaƙe-yaƙe masu ban mamaki inda mayaƙan suka fita ba tare da tsoron mutuwa ba. A cewar Maeda, taken jerin shine "rai", wanda a cikin Angel Beats! an nuna shi a matsayin abu mai mahimmanci da ban mamaki, duk da haruffa a cikin Angel Beats! waɗanda ke yaƙi da makomarsu. Maeda ta zabi Na-Ga don fara aiki kan ƙirar halayen kusa da farkon 2008. Na-Ga ya damu da cewa sauran ayyukan zane-zane na kwamfuta (CG) don Key za su jinkirta, amma ya ɗauki matsayin saboda ƙwarewar da ya tara a cikin CG. Maeda ya zabi Na-Ga saboda shahararrun halayen da ya tsara a Little Busters!, kuma saboda gaskiyarsa. Na-Ga ya tsara Yuri bisa ga halinta a matsayin jagora, kodayake bisa ga buƙatar Maeda ne ya ƙara madaurin baƙar fata, wanda aka ɗauka daga halin Yukiko Amagi daga Persona 4, wanda shine jarumar da Maeda ta fi so daga wannan wasan. Tsawon gashin Yuri da kuma kara wani launi na kore an yanke shawarar daga tarurruka na kwamitin samarwa. Manufar Angel ta asali ta fara ne da ra'ayin wata budurwa mai jaruntaka, mai gwagwarmaya. Maeda ta yi ƙaulin...  Tambaya: Me ya sa Na-Ga ke damuwa?
cewa sauran kwamfuta graphics (CG) aiki ga Key zai samu jinkirta