| No. | Title | Type | Language | Rating |
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| 1 | O Pretends to be B For The Violent Admiral | Web Novel | chinese | 4.4 |
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| 2 | O-Ri-Ga-Mi | Light Novel | japanese | 3.6 |
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| 3 | O.V.E.R.L.O.A.D One Day… I Am a Villainess | Web Novel | thai | 4.1 |
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| 4 | Oasis | Web Novel | chinese | 3.2 |
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| 5 | Obaachan (28) is Free | Web Novel | japanese | 2.9 |
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| 6 | Obedient Pregnancy | Web Novel | korean | 3.4 |
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| 7 | Obey Me | Web Novel | korean | 4.0 |
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| 8 | Obituary | Web Novel | korean | 3.1 |
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| 9 | Obligation of an Arranged Marriage | Web Novel | korean | 3.7 |
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| 10 | Obscene | Web Novel | chinese | 3.1 |
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| 11 | Obscene Immortal | Web Novel | chinese | 4.2 |
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| 12 | Observation Record of a Self-proclaimed Villainess’ Fiance | Web Novel | japanese | 4.6 |
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| 13 | Obsessed by My Husband’s Loyal Dog | Web Novel | korean | 4.1 |
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| 14 | Obsessed with Regressors | Web Novel | korean | 3.1 |
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| 15 | Obsession | Web Novel | chinese | 3.5 |
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| 16 | Obsession | Web Novel | korean | 2.7 |
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| 17 | Obsession (Nanashi) | Web Novel | japanese | 2.3 |
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| 18 | Obsession of the Neglected 6-Star Heroes | Web Novel | korean | 2.6 |
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| 19 | Obsession… What’s That? I Just Wish Someone Would Help Me Escape | Web Novel | korean | 3.8 |
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| 20 | Obtaining the Strongest Cheat | Web Novel | japanese | 2.6 |
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| 21 | Obviously, He Has a Crush on Me | Web Novel | chinese | 3.1 |
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| 22 | Obviously, It’s My Child | Web Novel | korean | 3.7 |
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| 23 | Occupation: Adventurer; Race: Various | Web Novel | japanese | 2.5 |
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| 24 | Oda Nobuna no Yabou | Light Novel | japanese | 4.2 |
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| 25 | Odalisque | Web Novel | korean | 3.7 |
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| 26 | Ode to Longevity | Published Novel | chinese | 2.6 |
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| 27 | Odoacer | Web Novel | japanese | Not rated |
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| 28 | Of All Things, I Became a Crow | Web Novel | korean | 3.8 |
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| 29 | Of All the Transmigrations, Why Am I a Prisoner? | Web Novel | chinese | 3.9 |
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| 30 | Of Course, It’s What a Maid Would Do. — The Falsely Accused, All-Purpose Maid Sets Off On a Journey | Web Novel | japanese | 3.8 |
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| 31 | Of Course, I’ll Claim Palimony! | Web Novel | japanese | 4.2 |
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| 32 | Of Mountains and Rivers | Web Novel | chinese | 4.0 |
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| 33 | Off Air ~Yes, No, or Maybe Half?~ | Light Novel | japanese | 4.5 |
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| 34 | Off Work, Then I Become a Magical Girl | Web Novel | chinese | 4.3 |
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| 35 | Offer a Tribute and Become an Archmage | Web Novel | korean | 3.9 |
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| 36 | Offered Into Marriage | Web Novel | chinese | 4.2 |
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| 37 | Offering My Body for a Dragon | Web Novel | chinese | 3.5 |
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| 38 | Offering Salted Fish To Master | Web Novel | chinese | 4.4 |
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| 39 | Offering a Bouquet of Bellflowers to the Ghost of a Drowned Man | Web Novel | chinese | 4.4 |
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| 40 | Office Worker Who Hears Memories | Web Novel | korean | 4.0 |
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| 41 | Office Worker’s Immortal Dungeon | Web Novel | japanese | 2.7 |
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| 42 | Officer, I Didn’t Really Deal Dr*gs! I’m Selling Genuine Rock Candy | Web Novel | chinese | 3.9 |
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| 43 | Oh My God! Earthlings are Insane! | Web Novel | chinese | 4.3 |
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| 44 | Oh My God, I Actually Had A Second Child With My Cold Best Friend! | Web Novel | chinese | 3.4 |
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| 45 | Oh My Ice Goddess | Published Novel | filipino | 3.8 |
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| 46 | Oh No! As a Mage, Why Can I Only Cast Forbidden Spells? | Web Novel | chinese | 2.9 |
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| 47 | Oh No! I can’t keep up my Evil Woman Persona anymore! | Web Novel | chinese | 3.8 |
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| 48 | Oh No! I’ve Become the Frail White Moonlight of the Witches! | Web Novel | chinese | 3.6 |
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| 49 | Oh No! They’re All Eyeing Me Like Tigers! | Web Novel | chinese | 3.5 |
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| 50 | Oh No, I’ve Been Tricked by the Yandere Sisters of a Wealthy Family | Web Novel | chinese | 3.3 |
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