Aww how nice

Very sweet :) a new story for this pairing always brightens my day. I like how you creatively used the words in the prompt as well. I could definitely see these two as the ones who somehow end up detention and its believable that Cissa's fear would be snakes.

Oh, that was lovely. I adore stories about unusual friendships/acquaintances. Blimey, the skipping rope? I'd be mortified too. Thanks so much for writing and sharing. That was excellent.

Ok sorry I saw this and was all OOOH A QLFC FIC LETS SEE LETS SEE and couldn't help myself. And it's my baby Remus to boot!

Ok so right off the bat, I have a couple nitpicks- Can you just not turn up for detention like that? Especially at Hogwarts? Doesn't seem like it, but it may seem more plausible if there was some sort of added on explanation or if you simply rephrased the sentence like- he was irritated that they hadn't turned up yet. That makes more sense.
*next, the sentence "It hadn't even been anything to do with him." Is very weirdly phrased. I think it's the use of perfect tense plus the structure that makes it that way. It would read so much better as- "He hadnt even had anything to do with it" or "It hadn't even had anything to do with him" or "It had nothing to do with him" (although the second one isn't very great either, I was just trying to keep it the way it is, but the first is much better. And the third is the best. Also passive voice. Try not to use it too much.)
*next, The next bit begins in perfect past and then continues in simple past. Why the change? I suggest you just stick to simple past since you've already separated that bit from the previous one and to keep things constant. So the "It had been yesterday evening" that reads really weirdly would be "It was the previous evening" (yesterday evening sounds weird. People usually don't say yesterday evening. It's either last evening or yesterday). Also the apostrophe on either sides of the 'o' should just be after the o. Nine o' clock.
*ok so I just decided to get all the nitpicks out of the way first- what does "Even though Remus was always [stood by]" mean? I'm not sure if your phrasing of these sentences is deliberate or not. If it is, ignore me, but if not, I'm really wondering why they're phrased that way.
*i think the problem is with your tense of 'stood'. Again, I don't know if it's deliberate, but "Stood a Few feet in front..." Sounds really weird. It would normally be "standing a few feet in front..."

Ok so I really really liked that Boggart scene. I especially liked the deescription of how the Boggart changed from a Walburga/Dumbledore crossbreed to a moon. It was fantastically done.

Still finding the fact that they're just not turning up for detention really weird. Sure, it's Sirius and James, but even THEY should have SOME sense of fear in them.

Noooooo no no no no no no. Timelineeeee! Narcissa is five years older than the Marauders. She would've been in her sixth year when the Marauders were in their first. It can be assumed that Andromeda was born two years before Cissa, But Bella was born four years before Cissa, meaning she'd left Hogwarts long before the Marauders started. I think you should mention that your timeline is skewed because you might get points taken off for that and also because your timeline IS skewed.

Characterisation: While I quite enjoyed your characterisation of Remus as it's quite on point and very poignant, I have to say I feel the exact opposite with regards to Cissa. 1. She is a Pureblood, spoilt brat who's been raised to think that she's better than anyone else. 2. She's a Slytherin and most important 3. She is a Black. Narcissa Black does not talk to Gryffindors except to remark snidely or make imperious comments, she does not make small talk especially when she's in a humiliating position as detention, especially with someone in the same position, and most of all, she does not behave like a normal school girl. "I'm nothing like my sister"? I highly doubt it. All three girls would have been brought up the same way. While they made their own choices later on, let's not forget that they are women of Toujours Pur through and through. They do not care about people they consider inferior to them and they most definitely do not voluntarily start up friendly conversations with the House of red and gold.

But despite all my very many nitpicks (which, I must say, I hope helped because I picked on your story simply because it was a QLFC fic and I wanted to help you get as many points as you could. Falcons for the win though!) I did quite enjoy the cute relationship you built between Remus and Cissa because while wholly unlikely, was very cute and poignant and I liked how neither judged the other. A far cry from canon, but we need stories like this every once in a while and after all, there's a reason this is fan fiction.

All in all, i thought the concept and idea was original and the pairing you've chosen was very interesting as well. I loved Sirius and James' little cameo and I sort of thought the break between the first and second bit was unnecessary because the second bit ties back to the first in the end, so it's basically all just one scene.

Well done and may the best team (Falcons) win!