If you like both KonoSuba and Re:ZERO here’s some good news for you. A crossover between the two series is now in the works. A book about the creation of the two series titled Re:Starting Life Blessing This World, will be released on December 31 in Japan. Besides that a “main character crossover interview” will be done by the voice actors for Subaru and Kazuma. While Rie Takahashi will speak about voicing Megumin and Emilia. Lastly, a crossover manga will be worked on by Daichi Matsuse who illustrates the Re:ZERO manga. Other than that no release or information about the manga was given.
