[GasTanker] Testing new medicine (Onii-chan wa Oshimai!)

Mihara Oyama, a schoolgirl in a white coat, kneels as she tries a new medicine that promises relief from bloating. The sudden release erupts in a massive fart that overwhelms her, leaving her flushed and conflicted between embarrassment and unexpected pleasure. Her thoughts linger on being beyond expectation and still feeling bloated, inviting readers to follow her comedic struggle.