To all the people who are discussing the f-bomb in the chapter:
Taking a look at the raws for chapter 60, it looks like Falma said 「いけるぞ」, which is informal and means "Let's go".
Disregarding the swearing, that is accurate to what the mangaka conveyed.
The way I see it, combined with the flashback, this is Falma's past self coming into thought and responding this way, which would be a lot more modern and likely more informal, as we see in the panel.