如果他轻信了别人的话，知道Summer的主人格消失其实是阴谋，那后果很

如果他轻信了别人的话，知道Summer的主人格消失其实是阴谋，那后果很可怕。

Results (English) 1:

If he believed in others and knew that the disappearance of Summer's character was actually a conspiracy, the consequences would be terrible.

Results (English) 2:

If he credes to others and knows that Summer's disappearance is a conspiracy, the consequences are terrible.

Results (English) 3:

If he is credulous to others, he will know that the disappearance of summer's master character is actually a conspiracy, and the consequences will be terrible.