My Friend's Little Sister Has It In For Me! Volume 8 (Light Novel)

Its time for the biggest event of any high school career: the class trip! With Iroha out of the way, Mashiros more determined than ever to deepen her (fake) relationship with Akiteru. Sucks for Mashiro, thougha third girl is now vying for Akiterus affection! And Irohas launched into a long-distance offensive to pester him, but will that be enough for her? With so much trouble brewing, this relaxing trip to the hot springs will be anything but!