"Why is this character on the cover?!" Even the author jokes about it! SPY x FAMILY Vol. 17 released, "Auntie Tonito" cover becomes a hot topic

Tatsuya Endo, the creator of SPY x FAMILY, has updated his official X account to announce the release of Volume 17, sparking a massive buzz among fans.
Endo reported, "SPY x FAMILY Vol. 17 will be released tomorrow, April 3rd," and shared two images. The first is the cover of Volume 17, featuring the logo set diagonally against a green background and Donna Schlag—better known as "Auntie Tonito"—sitting regally in a chair with lightning crackling at her fingertips. Regarding the choice of character, Endo humorously remarked, "Those who haven't read the story yet might think, 'Why is this person on the cover?!' but I hope you can bear with me," while also sharing the design background of the featured chair.