Yotogi Yuugi ~Ojisama no Seiyoku o Nameteitara, Mainichi Kyodai chi 〇 Po de Rareteimasu~ 
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Description
A 19-year-old Ayako Sonozaki is a highborn lady who despises men due to childhood trauma.
But her family's financial ruin forces her into marriage.
She sets one condition: She needs a husband who won't expect nighttime duties from her.
From a pile of suitor photos, she picks a divorced 40-year-old man, Koumiya Seiiichiro.
He's a ghostly, enigmatic earl who seems the least likely to demand intimacy.
At their meeting, her intentions are exposed… but Seiiichiro proposes a game instead.
Official Translations:
English (DLsite, Coolmic, MangaPlaza, Renta!), S.Chinese, T.Chinese, Korean
Type
Manga
Related Series
N/A
Associated Names
Juego Nocturno: Subestimé el Deseo Sexual de Este Hombre
Nightly Entertainment ~Underestimating His Libido, I Am Taught Every Evening by His Large Manhood~
Nighttime Play ~If You Underestimate the Sexual Desire of an Old Man, You Will Be Made to Understand by His Huge Dick Every Day~
Nighttime Play: I Underestimated an Old Man's Sexual Desire, and Now I'm Being Fucked by His Huge Dick Every Day.
The Game of Nightly Pleasures ~Underestimating an Older Man's Lust Only Leads to Being Brought to Climax Daily by His Gigantic Cock~
侍寝游戏～小看了叔父大人的性欲后，每天都被巨大肉棒教训～
侍寢遊戲～太小看大叔的性慾，結果每天都被巨大肉棒給教訓～
夜伽遊戯
夜伽遊戯～オジサマの性欲をなめていたら、毎日巨大ち〇ぽでワカラセられています～
동침 유희 ~아저씨의 성욕을 얕봤더니, 매일 거대한 자○로 혼나고 있습니다~
야간 유희 -절륜 아저씨와 위험한 밤놀이-
Groups Scanlating
N/A
Latest Release(s)
N/A
Status in Country of Origin
Oneshot (Complete)
Completely Scanlated?
Yes
Anime Start/End Chapter
N/A
User Reviews
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Forum
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Last Updated
December 27th, 2025 6:02am PST - 3 weeks ago
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Genre
Categories
Category Recommendations
Recommendations
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Author(s)
Artist(s)
Year
Original Publisher
Serialized In (magazine)
Garumani Senbai (DLsite)
Licensed (in English)
Yes
English Publisher
Activity Stats (vs. other series)
Weekly Pos #776 (-4)
Monthly Pos #1871 (No change)
3 Month Pos #3327 (-539)
6 Month Pos #5168
Year Pos #6471
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