曾经有一个关系很好的姐姐却因为信任人类而被举报，因此性格也发生了改变，

曾经有一个关系很好的姐姐却因为信任人类而被举报，因此性格也发生了改变，认为他人不值得信任。有一个愿意为自己付出的人类女朋友。

結果 (英文) 1:

There used to be a good sister because was report trust humans, so personality has changed, that others not to be trusted. A willing to pay for his human girlfriend.

結果 (英文) 2:

There was a good relationship with my sister, but because trust humans were reported, so the character has changed, that the others can not be trusted. There is a willingness to pay for his human girlfriend.

結果 (英文) 3:

Have a very good sister but because human trust have been reported, therefore character also changed, that others won't be worthy of trust. There is a willing to pay for their own human girlfriend.