The members of Team Ice Cube! discover an unknown location underground. After a bright flash of light, it is revealed that they stumbled upon an Inverted Planet. Donut tells the team that he's heard stories about them, but never knew they lived so close to one. Gelatin and Naily immediately start running around, chasing each other.

They jump off of a tree, and Naily impales Barf Bag as she lands, spilling her barf everywhere. Donut begins to worry and tries to patch her up when she starts to feel sick and tells the two of them to stop running around, which Gelatin and Naily ignore. Soon after, the former tells Donut he found something.

Donut has patched up Barf Bag and is waiting for a response from her. She has now fallen into unconsciousness. Gelatin has found a hot spring, where the team can both chill out and refill Barf Bag. Bomby, as the strongest object in the team, grabs Barf Bag and dips her in water, waking her up as her chest heaved. Seeing this Donut embraces her. Barf Bag, energized by the intake of water, says she feels "great". Despite the fact her body looked much more stuffed now because of the water, her shirt riding up, exposing her now fattened stomach.

barf bag: "Let's just.. focus.. Okay?" she said, blushing as she stared at her inflated body. She let out a quiet burp as she poked her full tummy. "I... I could really go for some warm milk.. maybe I'll find some by myself.. ough..~ the water in my body feels.. too good..~ aah..~ I'm such a dumb pig..~ Lollipop will tease me for sure.. though.. i.. i would like that..~" she thought to herself before eventually sneaking off from her group.