After taking a few turns, he found himself deep in the alley.

The houses in this area were all quite decrepit, and there were very few people living here, so it wasn't as lively and bustling as it had been earlier. As a result, Erwin was able to hear the sound that had brought him here more clearly.

After taking a moment to determine where the sound was coming from, Erwin was already able to accurately identify the room that was the source of the sound.

At the moment, he was carefully creeping through the alley like an excited wandering spirit.

As a seasoned veteran when it came to intergender relations, Erwin was able to discern the age of the woman through her voice.

Judging from how tender the voice is, it should be quite a young woman, Erwin thought to himself with a sly grin, then silently opened the dilapidated door of the neighboring house, which was already slightly ajar.

No one had lived in the house for many years, so it was already covered in dust and in severe disrepair, and there wasn't even a place to stand. However, Erwin didn't care about any of that.

He carefully tiptoed his way up the old wooden staircase with his ear pressed against the wall, trying to discern which room the sound was coming from.

Truth be told, there was no need for him to be so careful as the sound of the wooden bed repeatedly banging into the wall of the neighboring house and the rhythmic squeaking...