This is such a nice change-up from other budding romance stories involving Raiden. It's a challenge to write Raiden in anything other than a stern, serious manner, but he has human emotions, and I'm sure human desires. It's an under-developed idea, which I suppose actually gives a writer more freedom to use his/her own judgement-but too many just dive straight into SEXY!Raiden and it's so painfully OOC that I can't read anymore.
If some feel that Raiden/Cassie is implausible, that is on them. I think it is one of the more plausible relationships, as Raiden was a mentor to Cassie, and now she is a fully-trained kombatant, the daughter of two other kombatants, and she actually did save Raiden in MKX. Who's to say that Raiden wouldn't want to attempt a more equal relationship than mentor/student?
That all said, I hope you will continue this story.

Your story came to my attention because honestly, a friend who dislikes the Raiden-Cassie pairing shared it with me for a laugh. But I'm not gonna put you down, don't worry. Unlike most other stories this person shows me, yours has at least SOME merit. I personally think the pairing is cringeworthy, but your concept wasn't bad. But what DID catch my eye was the way your technical skill markedly changed like flipping a switch. I'm actually disappointed by that. The first passage was very spot on with the grammar and spelling. I was going to give that to you; most stories that are shared with me are failures on both those counts. But then, towards the end of the first passage, it abruptly switches and the story is then riddled with mistakes. In my line of work, that's what we call a tell. But I would prefer to think that your beta reader bailed on you. Now, I don't personally care because I'm not invested in you or your stories, but I'd urge you to be careful playing that game for the sake of your reputation.

Hey, so this was really, really cute. I really loved how you wrote Cassie, I thought she was really in character. She was the super sass master that everyone knows and loves. Cassie makes a really good foil to how wise Raiden feels, and I appreciate that!

The little quirks that you give them make them so interesting to read about.

I hope that you write more about this pairing!

This was so cute! I think you really captured Cassie well and Raiden's halting speech pattern. -

I was a bit confused about the timeline pacing at the beginning but I like the flow of the story overall it's a really good buildup to their shenanigans. The plot was well developed and your use of quotes really set the picture as well as kind of provided sources for the development in a persuasive essay kind if way.

Ahhhh I hope you write more