Canon raw files gets dark after importing to Lightroom.

Hi, I need help on how to fix this issue. Everytine I am transporting my Canon RAW images to Lightroom, it gets dark and almost can not see the subject. But it doesn't look that way outside lightroom.

I tried to transport Fuji RAW images (also called RAF)  to Lightroom and it didn't gets dark. 
I tried to search a solution in the internet but I couldn't find any.

I hope I can have a solution from you soon.

Thanks!