Shows Like Secret Mission - Undercover Agents Never Back Down!
Narcotics Enforcement Agent Riko Ikazuchi is undercover with her junior colleague Noma in an apartment that serves as the hideout for a criminal organization. Despite Riko and Noma posing as a newlywed couple, the criminals begin to suspect them after not hearing any marital intimacy during the night. To convince them that they are a loving couple, Noma starts touching Riko's body...
Ranked by shared creators, cast, themes, genre, and network — not just generic recommendations.
Overflow
Short-form ecchi anime with explicit erotic content, similar adult tone and production style
Araiya-san! Ore to Aitsu ga Onnayu de!?
Ecchi anime with erotic bathing scenarios, based on manga, same short-form adult animation format
Joshiochi! 2-kai kara Onnanoko ga... Futtekita!?
Short ecchi/hentai anime with erotic physical encounters, same adult content niche and format
Jimihen!! Jimiko o Kae Chau Jun Isei Kouyuu
Erotic office romance anime, coworker sexual tension, based on manga — same adult ecchi niche
Seduced by My Best Friend
Ecchi/erotic anime with explicit sexual content, based on manga, same short-form adult format
Fire in His Fingertips
Ecchi romance anime based on manga, slow-burn physical relationship developing between two adults
Yamada's First Time: B Gata H Kei
Sex comedy ecchi anime based on manga, explicit sexual goals and physical comedy drive the plot
Samurai Girls
Ecchi harem anime with action, fan service and sexual situations central to the show
Girls Bravo
Ecchi harem romance anime based on manga, abundant sexual humor and physical fan service
Sekirei
Ecchi harem action anime based on manga, physical intimacy and fan service are core elements
Domestic Girlfriend
Ecchi romance drama anime with forbidden physical relationships, explicit content, based on manga
Rent-a-Girlfriend
Fake-relationship romance anime with ecchi content — fake couple dynamic mirrors source show's premise
The Qwaser of Stigmata
Ecchi action anime based on manga with explicit sexual content and supernatural thriller elements
Koikimo
Romance anime based on manga with physical tension, adult male protagonist pursuing younger woman
Tales of Wedding Rings
Ecchi romance fantasy anime based on manga, intimate couple dynamics and fan service throughout
High School DxD
Popular ecchi harem anime with explicit fan service — same adult audience but very different setting
Ai Yori Aoshi
Romance harem anime where couple hides their relationship — shared secret-couple trope but milder tone
Ninja Scroll: The Series
Action/ecchi anime with nudity in an agent/mission context — shares ecchi + covert mission elements
My Dress-Up Darling
Romance ecchi anime based on manga, physical intimacy played for comedy/drama — same demographic
How Good Is Secret Mission - Undercover Agents Never Back Down!?
Ratings across IMDb and TMDB, plus our verdict.