I actually think the author might be setting up that Minato is going to kiss akari while not being in true love with her and that will be the taboo that's been foreshadowed. It's not like he hasn't shown plenty of signs of attraction to the other girls too.
@GambierBay
That boy who picked up kaguras energy looked suspiciously like young barbaros. Might just be how the author draws young guys, but interesting to think about