Monster Sonic! D'Artagnan no Idol Sengen
Plot Summary: When D'Artagnan went to Tokyo for a little fun, she spotted an unforgettable sight: Lucifer singing while basking in moonlight in a park. From that moment, no matter if she was asleep or awake, D'Artagnan's heart would not stop throbbing for some reason. One day, D'Artagnan sees a concert by the popular idol act Angely Diva at her friend Izumo's invitation. There, she resolved to follow her idol dreams, and the story of song and miracles begins.
Other name: モンソニ! ダルタニャンのアイドル宣言