Foreword/Description: (7/10) 

The description was good, it caught my attention. I only found one mistake.

Original: Would you be able to prepare your departure without hurting your loved onces?

I believe you mean ‘your loved ones.’

I found out the harsh way to never eat while doing a review, especially if it’s an angst story. I was happily reading away, looking for any mistakes in your foreword. I had to spit the piece of pop-tart in my mouth out when I read that Sunggyu was diagnosed with Leukemia. I was like ‘what the hell?!’ It totally caught me off guard. I had pop-tart crumbs all over me and the laptop. I felt instantly sad for Sunggyu. He’s one of my favorites from Infinite.

Lesson learned: Never eat while reading an angst story. 

So, your foreword is really good. It caught my attention, and it made me feel really sad and… stuff. You had a few mistakes–grammar and spelling.

In one line, you stated that the doctors told Sunggyu he needed to ‘bit’ farewell to his friends and family. I do believe you mean ‘bid’ farewell.

Since you’re writing this story in English, ‘Irak’ should be ‘Iraq.’

Original: “Oh, Sung Gyu! Enter!”he smiled as always.

Correction: “Oh, Sung Gyu! Enter!” He smiled as always.

You need to place spaces after the quotations. You also need to capitalize the ‘he.’ The only time it can lower case is if you place a comma beforehand. For example, 

“Oh, Kakurine039! Please marry me,” Kevin Woo proposed, getting down on one knee.

“Oh, stop it, Kevin! Please, just call me Soo Ae. And of course I’ll marry–”

Yeah, something like that.