question!!

where can I watch this? hey said my review should have at least 500 characters soo... I didn't knew that I would love this drama... i only watched this because of seo kang joon, at first I didn't understand the story, that's why I thought it wa boring but then go eun and seo kang joon's character caught my heaart so I continued it until I realized that i'm hookid into this drama... I'm really not good in writing reviews, you might find this as a useless review, but i'm just here to ask where can I watchhhhhhh ttttttttttthhhhhhhhiiiiiiiiissssssssssssss