A tunnel in a mountain that a college student visited with the intention of trying to deliver a video. The giant bugs that appeared there attacked them! VS. Human cruel survival.

New enemies, new bugs and an even bigger island.

In the nooks and crannies of the city, in the forgotten corners of rooms, insects are posing a growing threat! Where there are bugs, there is one girl! Her name is Inaho, and when it comes to bugs, this high school girl can solve any problem.

From MangaHelpers:
After an airplane crash during a school trip, Oribe Mutsumi and her classmates were stranded on a seemingly deserted island. Mutsumi found the other survivors, and used her wilderness knowledge to help them. She expects that they will be rescued in about three days, which doesn't seem so long to endure. However, she didn't account for the fact that the island is populated with gigantic killer insects. Her knowledge of butterflies, wasps, and more may be the only thing that will help any of her classmates survive to be rescued.