유래있는 고사성어 - 유래를 알면 더 재미있는 고사성어

[This app is recommended for these people.]

- Those who were interested in humanities
- If you want to give your child some funny words
- Those who are studying the lion language, the dead language, and civil servants

[Developer's Discussion]
Paid apps can be removed and used offline.

For customers with paid apps,
Please use the free app.

To provide quality content and maintain servers
Free apps inevitably contain a large number of ads.

There is no data exchange between paid and free apps.