Secret Mission: Sennyuu Sousakan wa Zettai ni Makenai!
English title: Secret Mission: Undercover Agents Never Back Down!
Japanese title: しーくれっとみっしょん~潜入捜査官は絶対に負けない!~
Type: ONA
Episodes: 8
Source: Manga
Genres: Hentai
Studios: Rabbit Gate
Producers: Suiseisha
Duration: 6 min per ep
Rating: Rx - Hentai

Undercover agent Riko Ikazuchi and her partner Noma infiltrate an apartment that is also the hideout of a criminal organization. They pretend to be newlyweds. However, when the perpetrators don't hear any sounds coming from them at night, they become suspicious.

To convince the perpetrators that they are a married couple in love, they start touching each other and making noise...

(Source: TMDB)