A black beach. No enemies. Just a long, melancholic walk.
This is the most critical phase. Around Chapter 5 or 6, the game will begin "locking" you into specific character routes based on your affinity levels. ataegina walkthrough guide
After defeating Ataegina, do not leave immediately. Swim to the back wall of the flooded room. There is a hidden chest containing 10x Corrupted Amber and a chance at the Sunken Throne cosmetic decoration. A black beach
You face Yourself (the Shadow Viriato).
Afterward, you are given a choice.