Hmm, this is a quite interesting, now, I actually couldn't find much.

Personality wise, Kaede would be the supportive girlfriend for Tsumigi who we all know has low self esteem. Although at times it would be too much for Tsumugi and Kaede might not realize this, so Tsumugi might have to take breaks from the overwhelming positivity of her girlfriend.

Appearance wise, although some see this as a less important detail, I'm not sure if I really like it, I am aware it's not about looks but I'm not sure, something about it feels off, but it's not too much of a clash so I would say it's fine.

So I would say a 6/10

Spoilers ahead so if you aren't completely done with the game and have an opinion to share leave it here, don't worry I will come back with a more researched opinion, thank you for reading this though

Sorry had to give the ones who didn't want spoilers a chance to evacuate, but yeah we all know Tsumugi isn't like that, this relationship wouldn't be very good with the fact that Tsumugi technically did kill her, or at least falsely executed her. Because of Tsumugi's overwhelming despair I feel like that would either have an extremely negative effect of Kaede or maybe Kaede's positivity might have a small positive effect on Tsumugi.

With this I would give it maybe a 4-5/10? I'm not sure

If you couldn't tell I'm not very opinionated or knowledgeable of ships, so I'll do my research and come back with a more knowledgeable opinion, or when my mind can work properly.

But I'll leave this here for my 'base opinion' for lack of a better term

[leave your opinion here if you want/have any thought that you want to share about my opinion]