Mei MisonoJapanese
Secret Mission: Undercover Agents Never Back Down!
Episode 1 also reviewed here: Hentai 1st episodes 2023: S
Also known as: Secret Mission: Sennyuu Sousakan wa Zettai ni Makenai!
Medium: TV, series
Year: 2023
Writer/director: Saburo Miura
Actor: Jun Shita, Mei Misono
Keywords: hentai, anime, boobs, yakuza, gangster
Country: Japan
Language: Japanese
Format: 8 episodes, each available at one of two lengths: either 3 minutes (censored for TV) or 6 minutes (uncensored for streaming)
Url: https://www.animenewsnetwork.com/encyclopedia/anime.php?id=29577
Website category: Hentai
Review date: 3 January 2026
Secret Mission Sennyuu Sousakan wa Zettai ni Makenai
The first episode was okay and the whole thing's pretty short, so I watched it. My final verdict was, again, "okay". No better, no worse. I wasn't screaming "RUBBISH!!" but I also wouldn't recommend it. Sometimes it's stupid, e.g. Keiji Noma can't run away from gangsters in episode 7 because his raging erection feels uncomfortable. Oh, come off it. Sexual arousal doesn't cut off blood supply to the legs. The baddies want to harvest your internal organs. You'd run like hell from them even if you had one arm hanging off... but no, this is hentai (albeit with a censored TV version), so Riko Ikazuchi needs some way of making her colleague's erection go down! What could she possibly do? Hint: she starts with fellatio.
The show's fast-paced, naughty and sort of gritty-ish. It's also fairly silly, but it hasn't realised this and is trying to be a rough-edged cops-vs-criminals show. The sex scenes detract from this less than you'd expect, surprisingly. Think 1970s. Our heroes, Riko and Keiji, are undercover cops. They're serious-minded professionals doing a tough job. They pose as newlyweds in order to live next to drug dealers, but the walls are thin and their targets are getting suspicious of the lack of bedroom action. Riko and Keiji realise this and dutifully do their jobs. They have no choice! It's for the mission! Later, they infiltrate a club for couples who like getting jiggy in public. If our heroes don't do the same, they'll blow their cover! It's a tough life being an undercover agent.
Riko is the senior of the two. She pretends to have a boyfriend (which is a BIG FAT LIE) and is determined not to have unprofessional feelings towards Keiji. She'll stick to her guns even after mutual orgasms. Meanwhile, Keiji is obedient and gullible. They're good cops, although in real life I imagine their activities in these episodes might violate regulations.
Riko's increasingly transparent lies to herself can be quite funny, but I was happy when the truth came out in the final episode. The gangsters' treatment of women is hentai-level, which makes them evil as hell and in serious need of getting led away in handcuffs. Sometimes it's a stupid show, e.g. the hentai-friendly aphrodisiac drugs that I'm pretty sure don't exist in real life, although the main problem here is Keiji's leg-disabling erection. The show's okay, though. I watched it. I quite liked our heroes.