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I Became the Demon King’s Right Hand so I Will Alter the Original Story Maou no Migiude ni Natta no de Gensaku Kaiaku Shimasu
También conocida como: 魔王の右腕になったので原作改悪します · Maou no Migiude ni Natta no de Gensaku Kaiaku Shimasu · 마왕의 오른팔이 되었으니 원작 개악합니다 · As the Demon King’s Right Hand, I’m Going to Rewrite the Script! · Corrupting the Story · I Became the Demon King's Right Hand so I'm · I Became the Demon King's Right Hand so I Will Alter the Original Story · Maou no Migiude ni Nattanode Gensaku Kaiaku Shimasu · เกิดใหม่เป็นมือขวาจอมมารแล้วเนื้อเรื่องก็ไม่เหลือชิ้นดี · 因为成为魔王的得力助手,所以要毁掉原作
Tooru Kariya, a corporate slave of an OL, finds out that her only solace, her favorite character, the "Demon Lord" in the manga "Lapis Lazuli World", has been killed. In despair, Tooru falls off a building. But she wakes up to find herself in front of the Demon Lord's castle! Toru has transmigrated into Lapis Lazuli World and unexpectedly befriends the Demon Lord, so she offers to serve him. There is only one thing to do! I will make sure the Demon Lord has a happy ending!