Busters quest not appearing

I really want to play the Busters portion of the game but for some reason, the quest isn't appearing above his head, I already beat the game and am in the post-game now. I heard that the quest should have shown up around ch 7. Can someone please help?

https://preview.redd.it/3rjb0lgst3de1.png?width=667&format=png&auto=webp&s=15cd760b2966554cc48ae1eb3725d9859ab00b11