Karada de Kaiketsu ♡: Hyakkiya Tantei Jimusho – Hyakkiya Hikari no Youkai Jikenbo – Episode 4 (ES)

Summoned by Inspector Mimoto to a remote mountain area, Hikari Hyakkiya and her trusty shape-shifting cat companion Tamakin arrive expecting routine business—only to confront a revenge ambush by three powerful youkai she had previously defeated. United in hatred for the busty detective, the trio launches a ferocious assault in a classic boss-rush scenario.

Hikari's nonchalant "Case closed—surrender now!" is met with overwhelming force, but Tamakin steps up with his massive endowment, turning the tide in a wild, multi-partner erotic showdown. Amidst flying semen, jiggling gigantic breasts, and a seductive fundoshi-clad dog-eared youkai delivering the final intense climax, Tamakin emerges victorious, leaving the foes defeated in ecstasy.

Yet victory is short-lived: a enigmatic woman appears, revealing her deep grudge against Hikari's parents and her role as the overarching mastermind behind every case. With destinies intertwined, Hikari and Tamakin face their greatest threat yet. This grand finale of Mousou Senka explodes with chuunibyou spectacle, four consecutive giant-breasted youkai encounters, high-risk "death by pleasure" thrills, and emotional stakes in a fantasy hentai epic that ties the series together.