Oomf okay. I had an idea of Yume's relationships before this but I haven't written, so I made a summary under the cut (longer than I expected)!
Sasuke/Yume is obviously OTP, he's got the happily ever after plan, Yume is here to leave lipstick stains on that nerd while he talks. They hold lectures for each other, to talk abt cool things they've learned about living in the Sengoku.
Kenshin is just, slightly overbearing inlaw to me. He Is Very Happy for Yume and Sasuke, but also weird about it. He canonically likes Sasuke/MC because it makes him a better ninja. He is threatening Sasuke to not fuck this up and taking them both drinking.
Kanetsugu likes Yume because Kenshin likes Yume. Maybe has a tiny crush, but he is The Man Of The House, he would never pursue a friend's lady. Yume respects him bc she could Not be working that hard but also slightly intimidated by the competence.
Yukimura and Yume are Sengoku Besties! Yuki is straight up in love but would never admit it, he's too good of a friend to Sasuke for that. Poor guy gets blindsided not a week after realizing his feelings in Sasuke's main route. Entire friendship is snark, sooo snarky.
Shingen and Yume are close, cool uncle situation (?), seeing as he's the voice of reason (mostly). Yuki tries to control their combined sweets snacking, but there is no stopping their illicit sweets trade. Yume learned how to hide in the ceiling panels and will never give them up. Shingen also Maybe feels just a little smug abt having Yume live at Kasugayama instead of returning to the Oda. (He brings it up under peace talks and almost gets punched).
Yoshimoto is the only Kasugayama lord without a 'kid' and that's where Yume slots in. If Yume isn't busy, they're hanging out and learning abt ancient poetry or casing the market with Yoshimoto. Would never be smug abt Yume living in Kasugayama but isn't above subtle snark at Nobunaga, divorced parent style.
Keiji and Yume never get to know each other too well, but Kanetsugu vouches for them both so they do get along. Keiji treats Yume with Posi-keiji and Yume is not fond of loud noises.
Ranmaru is that cute little brother who Yume dotes on, but he's sneaky abt being mean to the Kasugayama crew. He Does Not Like Yoshimoto and Shingen for being smug abt taking his sister. Yume does not believe the accusations, Ranmaru Would Never.
Mitsunari/Ieyasu/Masamune and Yume are all the Oda kids methinks, siblings vibes but they're all a similar age. I'm kinda tired at this point, but it's not too different from canon. Ieyasu would call Yume's outfit ugly then push somebody else down the stairs for saying the same.
Hideyoshi is suspicion to overbearing parent pipeline in about a week. Fully supports the Nobunaga lucky charm thing and fusses over Yume even when she tries to dodge. He and Kenshin are similar exempting the murder attempts, he was the one who tried punching Shingen.
Nobunaga is Yume's parent, but like in a divorced dad way. He is losing the custody battle to Yoshimoto but bribing her with konpeito. He doesn't need to be snarky, Ranmaru does it for him. Nobunaga likes to bother Sasuke on purpose when Yume isn't around.
Mitsuhide is scary, sorry. Yume cares abt him but also knows he is There To Get Her. Mitsuhide just likes tormenting her, mean ass older brother who is there to show you a big bug.
For the lone forces, Kennyo is mostly an unknown for Yume and vis versa. They hear abt each other through Ranmaru but don't really meet. They would feed cats together if they did.
Kicho and Motonari and Yume's public enemy number one. She isn't a threat to either of them, but Motonari likes to mess with Yume, and Kicho is morbidly interested in her.
Yoshiteru is confirmed to have some sort of fixation on MC, but there isn't a reason given, so I just went with that. Saizo is supposed to be one of the 10 braves like Sasuke, so I assume he would have contact with Yume. They're friends because of Sasuke, maybe Saizo has a little crush.
For the other Ashikaga forces, I'll have to wait for more stuff to come out! But Yume seems like she'd be afraid of most of them ;;
