Questions about 112233 Challenge!

[GOD GUNDAM]

1.Where can you get the Firefly because I suppose it is frustrating to flee from enemies before you even get it?!
2.So, what equipments do you guys use in the beginning of the game?
3.Do you die easily from fleeing before you even get the Firefly?

[Renmiri]

Sell at the Bazaar:

1 Snowfly
2 Tomato Stalk
1 Magick Lamp

To buy "Blush of Light" at 4,500 gil. It is the Firefly

[gudkid]

what does the firefly do?

[Dark Messenger]

Firefly causes the user to get no EXP.

Good for levelling the reserves with a Level 70 wearing Firefly and not taking the EXP.

Like this:

LV. 70 (Firefly)
LV. 70 (Firefly)
Lv. 32 (No Firefly)

It's almost as if the Level 32 is fighting alone. They have help killing monsters, but they get all the EXP!

[Jiro]

n00b question but how does this challenge work?