Su Yang actually wasn't feeling guilty, but the main reason was because he couldn't find a reasonable explanation.
'After all, it's only slightly past 10am and Lin Jiali hasn't even opened the curtains at home. Furthermore, I myself am neatly dressed, but Lin Jiali isn't. In fact, she doesn't even have her bra on.
'Who would believe me if I said I merely entered her house earlier?
'However, it would be unrealistic to pretend that I'm not here. After all, Lin Jiali has already seen me just now, so how am I supposed to explain my sudden disappearance?
'Then… Why don't I erase Lin Jiali's memory and then turn invisible?
'Do I really have to erase Lin Jiali's memory for such a trivial matter? Wouldn't I be over-relying on my superpowers if I did that?'
Su Yang began to hesitate even more.