Shin Honkaku Mahou Shoujo Risuka

Vol.3 Chapter 11: The Enemy of My Enemy Is My Arch-Enemy! — The Mouth!
Vol.3 Chapter 10: The Enemy of My Enemy Is My Arch-Enemy! — Speak for Yourself with That Forehead Mouth!
Vol.3 Chapter 11.5: Volume 3 Extras
Vol.3 Chapter 10: The Enemy of My Enemy Is My Arch-Enemy! — Speak for Yourself with That Forehead Mouth!
Vol.3 Chapter 11.5: Volume 3 Extras
The elementary schooler unlike any other, Kugi Kizutaka—who is searching for "useful pawns" in order to achieve his own ambitions—comes to learn of Mizukura Risuka, a magician with the title "The Red Witch of Time." Risuka had left the Kingdom of Magic through the Gate, chasing after her father, a great mage called both "a God" and "a Demon." An unpredictable and unchained magical tale!