Absolutely Haunting! is a short 'eroge' VN about your school's Occult Club, which only has three members! Gabrielle, Lucy, and you decide to liven up your club activities, and investigate the rumors about the abandoned old school. Halfway through the night, you discover you're locked in, and the haunting rumors of this place may not be rumors at all! Figure out who or what is haunting the school while juggling your feelings for your two friends, who have begun acting strange since coming here. What's with that eerie green glow in their eyes anyways~?