After leaving the House of the Heart, Angel sat silently at the desk for a long time.
The words he spoke to Sangye weren't exactly lies. He always felt that the House of the Heart had little effect on him.
From a young age, Angel was taught by Jon to constantly introspect, which made him very cautious and respectful of his own thoughts and actions. He knew clearly that he definitely had obsessions, but he would never have an Obsession Demon.
However, this time the experience in the House of the Heart did surprise him. Indeed, his obsessions were as he had guessed, without the overwhelming presence of an Obsession Demon. Yet, there were indeed worries deep inside him and places he didn't want to touch, such as the mirror.
Other obsessions may not turn into demons. However, the world within that mirror, the person in the mirror, could potentially become his Obsession Demon.
This was something Angel urgently needed to pay attention to after experiencing the House of the Heart.