Gray Goo of Mid Summer

By Inoue Tomonori

Also known as 7 saved titles

グレイグー発生 · ja · original真夏のグレイグー · ja · originalGray Goo of Mid Summer · enGoo Gris de Mediados de Verano · es-laManatsu no Gray Goo · ja-roManatsu no Grey Goo · ja-roСерая слизь в середине лета · ru

The high school student Kurashiki Manatsu (Midsummer) has one of the best kendo skills in Japan, but she is not good at studying. Together with Tsumugi, an insect video creator, and Ayano, an urban legend expert and conspiracy theorist, she was about to attend remedial classes on the first summer vacations day, but a Self-Defense Force helicopter suddenly landed in the schoolyard. This was the beginning of a super dangerous and too hot summer vacation for Midsummer!