Thanks to Midori's confession, Akiteru's finally ready to work out his feelings!

Too bad he's still in the middle of a class trip!

Mashiro goes on the offence and invites Akiteru on a date to a theme park, and Iroha's mother greets them with open arms... But why the heck is Iroha there too?

Akiteru just wants to catch a break for once! Aren't theme parks supposed to be fun?!

My Friend's Little Sister Has It In For Me! Volume 9 (Light Novel) captures the chaotic adventures of Akiteru as he navigates the complications of love during what should be a carefree time at a theme park. Will he find the answers he seeks amidst the whirlwind of emotions?