Shintarö Kisaragi is an 18-year-old recluse and NEET who spends pretty much his entire life on the computer. On August 14, while arguing with an artificial intelligence called Ene living inside of his computer, he accidentally spills soda on his keyboard, leaving it damaged beyond repair. With no online stores being able to deliver a new keyboard quickly due to the Obon holiday, Shintarö has no choice but to actually go out in public for the first time in two years to buy a new keyboard himself...