Hello, Hello World!

Summary

After her older brother goes missing, a young girl enlists the help of a suspicious-looking man. According to him, however, with an "evil god" wreaking havoc on the world, everything is on the verge of destruction...... How will this "world" look like when it's at its end? A sinister RPG game based on the legend of Cthulhu, all in a cute, pop art style.