Japanese Gum Review #4: Fit's Mix 7+1

This gum has eight types of flavor chips. Seven of them are revealed to the chewer. They are lime, blueberry, passion fruit, peach, lemon, orange and mint. What's the eighth flavor? It's an exciting mystery for you to solve. I asked one of my students what he thought it was. He guessed passion fruit. That would be quite a tricky mystery to solve if the mystery flavor was also one of the seven flavors, but I wouldn't put it past the zany scientists working at Fit's.

There's also a pretty good ad campaign going on with this:

They've done this before. It's called the hide and seek campaign. Apparently there are famous people in the background. They don't tell you how many there are. There could be one. There could be twenty. If you're not Japanese, there are definitely zero. If you guess the right people, you get to split 7,770,000+10,000 yen (a bit less than $100,000) with the other winners. Obviously, between these two mysteries to solve, I'm getting no sleep at all.

Ratings:
Gaybot: 6   Lotte has produced another solid gum.
Girlbot: 4   She likes the slime flavor much more than this, and she'll never purchase this gum again. Also, she thinks the mystery flavor is mango.
Overall: 5