This specific episode is often listed as the "Hyper Sexy" or "Extra" OVA found on the Japanese Blu-ray release titled Bikini Warriors OVA 2 .
This special episode leans heavily into the series' signature meta-humor and RPG parody tropes, focusing on the "invisible" stats and physical appeal of the main party. Bikini Warriors OVA Episode 3
You can find the series on Crunchyroll (availability varies by region), though OVAs are often exclusive to physical releases or specific premium bundles. This specific episode is often listed as the