v6: Ruby kills manticore grimm fighting Oscar on the train
v7: Ruby kills saber grimm attacking Oscar from behind
v8: Oscar kills ravager grimm attacking Emerald from behind
She looks at him like she wasn't expecting anyone to just run in and protect her without a second thought, like "you could've let me die right there," meanwhile Oscar doesn't even acknowledge it as a big deal; that's just what teammates do. <3