Ido Masayoshiauthor : Ido MasayoshiIdo Masayoshi Book SeriesSummoned Slaughterer - Book 8Summoned Slaughterer - Book 6Summoned Slaughterer - Book 2Summoned Slaughterer - Book 1Summoned Slaughterer - Book 5Summoned Slaughterer - Book 4Summoned Slaughterer - Book 9