As the Communication Hero, I Formed the World's Strongest Party with a Cool Big Sister

After living a crappy life full of tragedy and struggles with communicating, online game-addict Haruka Nanase dies in a hiking accident and ends up reincarnated into a fantasy world. After running afoul of some criminals, she is saved by a cool heroine, who almost immediately asks her to be her (fake) girlfriend and then her adventuring partner. Their story truly begins when they discover Haruka’s special communication skills in a world where magic relies on the power of words.