Dan Kanemitsu reported on Twitter that Wada-sensei’s death was confirmed by a number of sources. Dan mentions, and I agree, that Wada-sensei’s contributions toward female leads in manga is immeasurable.
As you know, if you are a regular reader here, Sukeban Deka is one of my favorite series, and one of the three classic girl-gang series I love so much. Wada’s genius will be missed.
To paraphrase the last page of the Sukeban Deka manga, “Goodbye Wada-sensei, forever.”