 If you liked
Okusama ga Seitokaichou!+!
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 ...then you might like
Souryo to Majiwaru Shikiyoku no Yoru ni...
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Both have the same intense ecchi plot where it involves guy having to have do their mates , know what I'm saying, but in OgS, the guy often get's thwarted by another harem member from banging his future wife, while in Souryo, the characters were grwon ups and can do each other, know what I'm saying?