I’ve noticed something...Osugita Ai is actually “Too much love” :))
LOL ohmygosh I can't believe I didn't notice that before!
It's not just the symbol over her head, even her name means she has too much love for Mieko.
Also amusing: I didn't know what the hell Kanjani∞ was, so I looked it up. Turns out it's a Japanese boy band managed by Johnny, and the name isn't supposed to be read as Kanjani Infinity but as Kanjani Eight! For whatever reason, they decided to use a figure eight on its side as a symbol for the "Eight" in the name.
I guess it's not that strange that Mieko -- who knows the band Kanjani∞ but doesn't know squat about mathematical infinity -- assumes that any figure eight, either upright or on the side, can only mean the number 8.