South Korea is one of the world's most wired countries with over 90 per cent of the country hooked up to high-speed broadband.
As a result, many people are hooked on online video games.
In internet cafes, the gamers gather, all bathed in blue light from the neon and the glow of computer screens.
Sometimes they play more than 10 hours. Sometimes more than 20 hours. If it's like drugs, that makes Sung Hee Hong a reluctant pusher. He charges just $1 an hour, a price that encourages long sessions. Yet he often finds himself telling certain gamers to go home.
Regular customer Jung-Wook Lee stops for a late night snack. He says he's been playing for five hours. A check of the records shows he's been playing for 12 hours.
The dark side of gaming came to the fore in 2005, when a Korean man died of heart failure following a 50-hour session playing World of Warcraft.
Since then, the government has launched campaigns to warn school children of the dangers of internet use.
Psychologist Sang-Min Whang says up to 80 percent of Korean youth are addicted. But they don't need the government to tell them to log off. He says there is a need to channel the energy poured into the games in more beneficial directions.
