Pausing and thinking about it for a moment, Di Tou realized he still had one option he could try.
Ensuring that [A Gentle Touch] was running, Di Tou carefully parceled out his Spiritual Sense, remembering that the last time he used it, he had been able to notice minute details that he hadn't noticed with his eye.
Of course, he also remembered the pain that came afterward, and was still bothering him, so taking great care, Di Tou ensured that his Spiritual Sense didn't spread too far, while leaning into the wardrobe and using his Spiritual Sense to scan the seams.
Investigating in such a way, Di Tou was now sure there was a difference between the back of the two wardrobes now, as even without considering the difference in length, with his Spiritual Sense, Di Tou could tell that the wood in the two was different, one seeming much more tight and rigid, with the other being softer and seemingly younger.