나는 BJ다 is a simulation game developed by 4things for Android devices. In this game, you can experience being a BJ (broadcast jockey) and earn money through water balloons and advertisements.

You can also upload videos to 유토브 (a fictional video-sharing platform in the game) to earn ad revenue. The game requires you to manage the BJ's state by balancing sleep, meals, and leisure time. However, as I have not experienced being a BJ in real life, there may be some differences between the game and actual broadcasting.

Additionally, there is a joint broadcast feature that allows you to collaborate with Godivan, but it requires a high intimacy level and the purchase of Starcraft content. However, it takes some time to unlock this feature.