Seven Edu App Open! For the internet math class, and more, Seoul National University and KAIST researchers are all staying up all night and working head to head. “1st in Consumer Satisfaction” Now meet with the app. 1. Play High Definition Video Player 2. Convenient configuration and neat design 3. Real-time question and answer when playing video 4. University goal setting / occasional, on-time entrance examination information push 5. Participate in Seven Edu various events 6. Course reviews, G