Oh, I saw Lucina's hostility on the first 2 runs, and I agree, it is funny. I like Awakening's support convos a lot, actually. Some of them are hilarious, and some of them are great for character development. And not gonna lie....I was cracking up when I saw the S-Rank support between Chrom and MU.
Japan likes giving girls cutesy voices; they're really into that, iirc.