When Scarlett looked at his soul, Ethan could sense it. A mischievously hidden gaze looking at his bare soul with a chuckle was too hard not to notice. But at the same time, he also received the [Several Souls of Wonder Pill]'s effect.
Yes, if one of them ate a pill, it was the same as the two of them doing it. Scarlett could manipulate her colorless essence and see souls, and so could he. He saw her soul so filled with thoughts regarding himself and immediately began to see it being split into two pieces.
Their Dao Partner Art was just at the first level. If they reached the final level 3, they would feel each other's soul pain. But now, they each had separate souls, and he couldn't feel her pain at all. He wished he could.