Not much happened. I will start with mentioning how great the Gorosei looked.
It's great to see the man in the middle carrying his sword around like the warrior we can assume he is. Two important things happened, 1st, the murder of a Celestial Dragon, and now we know which one. Its none other than Charlos himself. There's no way he survived
Next, its the mention of Lily, the one who refused to plant her sword on the throne 800 years ago.
And of course, Imu showing herself to Cobra, which might be why he had to be killed, we'll know soon enough.
Feel free to share your opinions on the chapter.