Otonashi Kanade 
Did I Seriously Just Get Reincarnated as My Gag Character?! (Manga) Volume 4 [EPUB ebook] 

As Nacht’s battle with the ancient demon Rinoa reaches its climax, the overpowered demiwyrm from another world is finally granted her wish and hears the story of what happened between the Hero and Rinoa’s grandfather, the Lord of Calamity. This knowledge, of what happened to the two others who came from her world a thousand years ago, brings Nacht one step closer to answering the questions lingering in her mind: What is the link between this world and the virtual reality MMORPG Real World Online? What drives Rinoa to seek revenge against humanity? But something even bigger than an ancient demon lurks on the horizon, and by the time her battle is finished, Nacht Schatten will regret having left her servant Aisha to handle things on her own…