강남인강 - 중고등인강

Why choose high school students nationwide! The luxury lecture Gangnam Ingang is the answer!
Internet lectures are also classy. Gangnam Inchang provides systematic customized learning with star instructors. With Gangnam Ingang, you can develop your self-directed learning ability and check your grades ascending.

[main function]
- Support video streaming and downloading through Collus app
- Course management through course and My Page
- It is possible to inquire after class all courses by class
- Community participation and bulletin sharing through announcements and promotions
- Supports double speed