俺の妹を世界一の魔砲神姫にする方法
Ore no Imouto wo Sekai Ichi no Breaker ni suru Houhou (俺の妹を世界一の魔砲神姫にする方法) is a light novel series written by Takanori Shindou (進藤尚典), and illustrated by Ichikura.
(According to the furigana, "魔砲神姫" reads "ブレイカー".)
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