Youjo Musou: Nakama ni Uragirareta Shoukanshi, Mazoku no Oujo ni Natte "Eirei Shoukan" de Dekiai Slow Life wo OkuruYoujo Musou; 幼女無双; 幼女無双 ～仲間に裏切られた召喚師、魔族の幼女になって【英霊召喚】で溺愛スローライフを送る～; Youjo Musou: Nakama ni Uragirareta Shoukanshi, Mazoku no Oujo ni Natte "Eirei Shoukan" de Dekiai Slow Life wo Okuru; Little Girl Musou; Unparalleled Little Girl: A Summoner Betrayed by Friends, Become a Demon Little Girl, and Live a Doting Slow Life with "Summoning of the Spirits"

Lilith, the summoner who accompanied the hero party, was betrayed during the battle with the demons and suffered a serious injury because he refused the invitation of the hero. Helped by her demons, she cannot return to the country in a detour, so she decides to become a demon at the recommendation of Astaroth, the four demon kings who helped her. However, she made a slight mistake and she turned into a little girl. Even if she becomes a little girl, her magical power is not the same, but powers up! Summon the spirits and make an outstanding performance in battle and slow life