![6+girls absurdres areolae bikini black_hair blue_hair blush breast_hold breasts bust_chart cleavage covering_nipples crease dark_skin demon_girl eyewear_on_head green_eyes hair_ornament hairband hasegawa_chisato highres horns huge_breasts huge_filesize large_breasts long_hair mole mole_under_eye multiple_girls naruse_maria naruse_mio nonaka_kurumi nonaka_yuki nude pierre_yoshio purple_eyes red_eyes red_hair scan scan_artifacts shinmai_maou_no_testament short_hair silver_hair slingshot_swimsuit small_breasts smile sunglasses swimsuit topless two_side_up underboob white_background zest rating:q score:43 6+girls absurdres areolae bikini black_hair blue_hair blush breast_hold breasts bust_chart cleavage covering_nipples crease dark_skin demon_girl eyewear_on_head green_eyes hair_ornament hairband hasegawa_chisato highres horns huge_breasts huge_filesize large_breasts long_hair mole mole_under_eye multiple_girls naruse_maria naruse_mio nonaka_kurumi nonaka_yuki nude pierre_yoshio purple_eyes red_eyes red_hair scan scan_artifacts shinmai_maou_no_testament short_hair silver_hair slingshot_swimsuit small_breasts smile sunglasses swimsuit topless two_side_up underboob white_background zest](/cdn_image/preview/1d/1f/1d1f8d0670d545a321efe7c652711a2a.jpg)
The Testament of Sister New Devil (新妹魔王の契約者『テスタメント』), also known as Shinmai Maou no Keiyakusha, is a Light Novel written by Uesu Tetsuto and illustrated by Ōkuma Nekosuke (Nitro+) released since September 2012.
It has 2 manga adaptations and an anime adaptation.