Destiny Unchain Online: Kyuuketsuki Shoujo to Natte, Yagate "Aka no Maou" to Yobareru you ni Narimashita  

Destiny Unchain Online 〜吸血鬼少女となって、やがて『赤の魔王』と呼ばれるようになりました〜, Destiny Unchain Online ～吸血鬼少女となって、やがて『赤の魔王』と呼ばれるようになりました～　, Destiny Unchain Online　～吸血鬼少女となって、やがて『赤の魔王』と呼ばれるようになりました～

Crim the Headhunter, also known as Kou Mitsuki, is a highly skilled PVP player who has gained notoriety for his fierce gaming style. His next challenge awaits in "Destiny Unchain Online," a new VRMMO game created by his father. However, like any new game on release day, it comes with its share of bugs. In this case, Kou experiences a glitch that sends him to an unknown location, and his vampire avatar transforms into a female version. Despite these issues, it's time to gather your friends and strive for victory!