Complex sentence: The manager at the local store that Daikichi goes to for groceries, has a big interest in the supernatural and occult, and was surprised that Daikichi has suffered no harmed while living in the aforementioned haunted apartment.
Split into simpler sentences: The manager at the local store that Daikichi goes to for groceries. He has a big interest in the supernatural and occult, and was surprised that Daikichi has suffered no harmed while living in the aforementioned haunted apartment.