Title:
Just by glancing at the title, I like it. It makes me wonder what's being countdown to - like, what the word 'destruction' means in this. Does it mean legitimate destruction (like a bomb or something) or destruction within a relationship, so on and so forth. Titles like this that make you think are always good titles. After reading the story though, I can see why the title is what it is and the fact that it connects to the story perfectly makes me think that this is definitely a good title.

Description/Foreword:
The description kind of answers the questions above, I think, and the description made the title seem less 'cool' to put it that way. The God and mortal concepts are used a lot these days, I've even reviewed things with this concept so it made me kinda go "eh," since I thought the title was going to lead the story in a completely different way. Though after reading, I can see why it's like that and I think the whole "don't judge a book by it's cover (or description haha)" fits here since the concept wasn't as cliche as I thought it'd be.

As for the quote in the foreword, I love Lang Leav's quotes and stuff like that - I used to see them around all the time and they were always so good. I might even go read a few after this. Either way, I really liked this quote so I'm glad you put something from Leav in there.

Plot:
Okay, so I can see why the title connects to the story while reading because there's the countdown in the story which I thought was kind of clever. It was quite short so it's hard to get a legitimate plot but I can see where you wanted to go with this and I think you nailed it. I don't know why I thought a damn bomb was going to drop, the hell am I even. I like that though, that the destruction wasn't what I expected, it makes you engaged in the reading. I like the idea that when we die, we're reborn as someone else which is what is somewhat implied here at the end. It's a small little detail but it really made me wonder if that's what happens - maybe not but I like to wonder.

Writing Style/Flow:
I'm not really into 1st P.O.V stories and I was actually expecting 3rd but the way it was written is still good, the way everything was described made the 1st P.O.V work and I'm glad about that. The dialogue seemed very well thought out, well the dialogue there was that is. It felt really natural.

Characterization:
This part it pretty difficult to do since it's really only about one character, which seems to be Taehyung, and there are some things listed about the other one as well - like family, what she does and so on. But for Taehyung, I liked that he wasn't the typical "God", if that makes sense, and that he was lonely. 

Personal Enjoyment:
I don't really get why people ship things like this (and I don't like RV at all, they're not for me plus my ears suffered a bit lol) so obviously this wouldn't be my cup of tea but there's other people in the world who like this stuff so you're all set, really. As for the concept, it was pretty good and I liked the idea with the countdown, it was kind of refreshing? (I don't know what other word to use for that).

I think I covered everything I wanted to, I have no clue - it's 2am though and my brain be dead. (semi-dead) I hope this helped some way though- if it didn't just smack me awake, haha.