Otherside Picnic

Sorawo Kamikoshi, a college student, investigates "doors" that occasionally open up into the Otherside, parallel universes where internet creepypasta and urban legends come to life. When Sorawo encounters a creepypasta monster in one of these realms, she is on the verge of death. However, Toriko Nishina, another young lady who is proficient with firearms and is hunting for a lost friend, saves the day. Together with another woman named Kozakura, Sorawo and Toriko travel back to the Otherside in order to retrieve relics and fend off the monsters. However, as they do so, they encounter other trapped people and find themselves becoming more and more touched by one another.