Viper-BTR ~Mahou no Tobakushi Totokaru☆Chomi~

Ruri and her dice familiars return for another adventure, encountering a girl with the same transformative powers but far greater self-control. As Ruri hunts for three magical artifacts throughout the city, she simultaneously plots to sabotage Mai's charitable efforts. How far will she go to protect her coveted abilities, and what will be the price?