Magimoji Rurumo

The series follows Kōta Shibaki, a high school student, who trains with a witch named Rurumo through the use of magic tickets.

Shibaki knows this because Rurumo's familiar black cat Chiro tell him as part of the "contract" for giving him the tickets.

Now, Shibaki has a choice, make a wish and help Rurumo become a witch again or resist the temptation and try to save his own life.

The manga first appeared as a one-shot short story bonus for Watanabe's previous work Owarai Chibius (お笑いチビウス), included in Monthly Shōnen Sirius' July 2007 issue, and then became a regular serialization from October 2007 to February 2011, compiled into total of seven tankōbon volumes.

The ongoing third manga, titled Magimoji Rurumo: After School Magic Junior High Student (まじもじるるも 放課後の魔法中学生 Majimoji Rurumo: Hōkago no Mahō Chugakusei) begun serialization in July 2013 and ended in June 2019, compiled into nine tankōbon volumes.

by Suzuko Mimori, who also voices Rurumo, and the ending theme is "Futari no Chronostasis" (ふたりのクロノスタシス, Our Chrono Stasis) by Yurika Endō.