Manga by Initial Alphabetic:O

One Piece

Genre: Shounen ; Action ; Adventure ; Comedy ; Drama ; Fantasy ;...
View: 1,030,548 views
Author: Oda eiichiro

Chapter 971 Feb 15, 02:01
Chapter 970 Feb 01, 01:01

Onepunch-Man

Genre: Seinen ; Action ; Comedy ; Fantasy ; Supernatural
View: 445,524 views
Author: One

Chapter 172 Dec 17, 20:00
Chapter 171 Dec 17, 20:00

Onepunch-Man (ONE)

Genre: Action ; Comedy ; Fantasy ; Sci fi ; Supernatural
View: 284,208 views
Author: One

Chapter 133 May 22, 12:00
Chapter 121 Feb 05, 20:00

Osananajimi wa Onnanoko ni Naare

Genre: Comedy ; Fantasy ; Gender bender ; School life ; Seinen
View: 160,740 views
Author: Morishita Mao

Chapter 41 Dec 19, 04:51
Chapter 40 Dec 19, 04:51

Onii-chan is done for

Genre: Comedy; Gender bender; Sci fi; Slice of life
View: 146,438 views
Author: Nekotoufu,

Chapter 36 Jan 29, 17:00
Chapter 35.5 Jan 19, 01:00

Overlord

Genre: Seinen ; Action ; Adventure ; Comedy ; Drama ; Fantasy ;...
View: 121,752 views
Author: Maruyama kugane

Chapter 54 Jan 10, 17:00
Chapter 53 Dec 11, 20:00

Ou-sama ni Sasagu Kusuriyubi

Genre: Josei ; Drama ; Romance
View: 117,300 views
Author: Watanabe shiho

Chapter 37 Jan 27, 22:00
Chapter 36 Jan 13, 21:00

Onideka

Genre: Seinen ; Action ; Supernatural
View: 103,188 views
Author: Yatera keita

Chapter 34 Feb 22, 14:05
Chapter 33 Feb 19, 12:05

Ore ga... Yuri!?

Genre: Gender bender ; Romance ; School life ; Yuri
View: 98,772 views
Author: Satoru

Chapter 8 Feb 13, 09:00
Chapter 7 Dec 31, 09:00

Owari no Seraph

Genre: Action ; Drama ; Fantasy ; Mystery ; Shounen ; Supernatural
View: 94,668 views
Author: Kagami Takaya

Chapter 101 Feb 11, 05:30
Chapter 100 Feb 11, 05:30

Orenchi no Maid-san

Genre: Comedy; Seinen; Slice of life
View: 79,917 views
Author: Oohara roron,

Chapter 59.5 Dec 31, 19:03
Chapter 59 Dec 24, 11:00

Ore to Kawazu-san no Isekai Hourouki

Genre: Shounen ; Adventure ; Comedy ; Fantasy ; Slice of life
View: 71,772 views
Author: Kuzumochi

Chapter 40 Jun 19, 02:00
Chapter 39 Jun 18, 03:00

Otoyomegatari

Genre: Seinen ; Comedy ; Drama ; Historical ; Romance ; Slice of...
View: 71,004 views
Author: Mori kaoru

Chapter 87 Dec 12, 11:00
Chapter 86 Nov 17, 15:00

Ookami Shoujo To Kuro Ouji

Genre: Shoujo ; Comedy ; Drama ; Romance ; School life
View: 70,200 views
Author: Hatta ayuko

Chapter 58.5 Dec 19, 11:28
Chapter 58 Dec 19, 11:28

Ougon no Ringo

Genre: Shoujo ; School life
View: 65,712 views
Author: Minamitani iku

Chapter 9 Feb 17, 22:30
Chapter 7 Feb 17, 22:30

Our Relationship Is...

Genre: Romance
View: 64,392 views
Author: Lee yun ji

Chapter 69 Dec 19, 11:46
Chapter 68 Dec 19, 11:46

Of course, I'll claim Palimony!

Genre: Comedy; Drama; Fantasy; Romance; School life; Shoujo; Slice of life
View: 58,483 views
Author: Tamura Muto, Soy,

Chapter 7 Dec 25, 01:06
Chapter 6 Oct 31, 15:05

On The Way Home, I Got A Bride And Twin Daughters, But They Were Dragons

Genre: Fantasy; Romance; Seinen
View: 58,064 views
Author: Waon Fukakutei, Hitsuji Amano,

Chapter 9.1 Dec 25, 01:06
Chapter 8 Aug 15, 17:03

Okitenemuru

Genre: Seinen ; Horror ; Supernatural
View: 57,396 views
Author: Renda hitori

Chapter 73 Aug 26, 07:04
Chapter 72 Aug 26, 07:04

Only Sense Online

Genre: Shounen ; Action ; Adventure ; Comedy ; Cooking ; Fantasy ;...
View: 55,812 views
Author: Aloha zachou

Chapter 53 Aug 22, 02:00
Chapter 52 Aug 22, 02:00

Ouji-sama Nante Iranai

Genre: Shoujo ai ; School life
View: 52,464 views
Author: Harushion

Chapter 139 Feb 13, 17:00
Chapter 138 Dec 31, 19:00

Orange (TAKANO Ichigo)

Genre: Shoujo ; Drama ; Mystery ; Romance ; School life ; Slice...
View: 46,740 views
Author: Takano ichigo

Chapter 25 Dec 19, 23:10
Chapter 22 Dec 19, 23:11

Omoi, Omoware, Furi, Furare

Genre: Shoujo ; Comedy ; Drama ; Romance ; School life ; Slice...
View: 43,164 views
Author: Sakisaka io

Chapter 36 Sep 23, 03:02
Chapter 35 Jun 20, 03:00

Omae o Otaku ni Shiteyaru kara, Ore o Riajuu ni Shitekure!

Genre: Shounen ; Comedy ; Romance ; School life
View: 40,224 views
Author: Murakami rin

Chapter 36 Aug 01, 13:00
Chapter 35 Jul 29, 13:00

Oyasumi Jack the Ripper

Genre: Comedy ; Fantasy ; Mystery ; Shoujo
View: 38,736 views
Author: Ninomiya Ai

Chapter 12 Dec 20, 00:02
Chapter 11.5 Dec 20, 00:02

Ookami-heika no Hanayome

Genre: Shoujo ; Historical ; Romance
View: 38,100 views
Author: Kauta mato

Chapter 77 3 days ago
Chapter 76.6 Oct 02, 23:01

Oresama Teacher

Genre: Shoujo ; Action ; Comedy ; Drama ; Gender bender ; Harem...
View: 36,156 views
Author: Tsubaki izumi

Chapter 133 Oct 04, 07:00
Chapter 132 Aug 24, 17:00

Ouji-sama mo Kabocha no Basha mo

Genre: One shot ; Yuri
View: 35,124 views
Author: Yotsuhara Furiko

Chapter 1 Dec 20, 00:50

Ogeha

Genre: Josei ; Drama ; Psychological ; Sci fi
View: 33,948 views
Author: Oimo

Chapter 15 Dec 20, 00:59
Chapter 14 Dec 20, 00:59

Ojojojo

Genre: Seinen ; Comedy ; Romance ; School life
View: 33,300 views
Author: Cool kyoushinsha

Chapter 57 Feb 14, 06:05
Chapter 56 Jan 22, 04:05

Ookami ni Kuchizuke

Genre: Shoujo ; Romance ; School life
View: 32,412 views
Author: Yagami rina

Chapter 6 Dec 20, 01:34
Chapter 5.5 Dec 20, 01:34

Ouke no Monshou

Genre: Shoujo ; Adventure ; Drama ; Fantasy ; Historical ; Mystery ;...
View: 28,164 views
Author: Hosokawa chieko

Chapter 106 Jun 09, 05:00
Chapter 105 Dec 06, 04:11

Oomuroke

Genre: Shoujo ai ; Comedy ; School life ; Slice of life
View: 26,628 views
Author: Namori

Chapter 49 May 29, 12:10
Chapter 48 May 29, 12:10

Odin

Genre: Action ; Adventure ; Fantasy ; Webtoon
View: 25,716 views
Author: Olive

Chapter 9 Dec 20, 04:45
Chapter 8 Dec 20, 04:45

Ouran High School Host Club

Genre: Comedy ; Drama ; Gender bender ; Harem ; Romance ; School...
View: 25,416 views
Author: Hatori Bisco

Chapter 160 Feb 10, 22:30
Chapter 83 Dec 20, 04:57

Ojisama to Neko

Genre: Slice of life
View: 22,315 views
Author: Sakurai Umi,

Chapter 20 Feb 11, 19:00
Chapter 19 Jan 25, 13:00

Ookamidomo no Shitsukekata

Genre: Comedy ; Harem ; Romance ; School life ; Shoujo
View: 21,348 views
Author: Shiraishi Yuki

Chapter 5 Jan 21, 08:05
Chapter 4.5 Dec 20, 06:26

Ouji ga Watashi o Akiramenai!

Genre: Shoujo ; Comedy ; Romance
View: 20,808 views
Author: Asada nikki

Chapter 20 Dec 13, 08:06
Chapter 19 Dec 13, 08:06

Ozanari Dungeon

Genre: Shounen ; Action ; Adventure ; Comedy ; Fantasy
View: 20,352 views
Author: Koyama motoo

Chapter 86 Apr 18, 03:20
Chapter 85 Jan 24, 16:00

Offal Island

Genre: Action; Drama; Horror; Mystery; Psychological; Tragedy
View: 20,000 views
Author: Masaya hokazono

Chapter 8.1 Nov 23, 16:00
Chapter 7.2 Nov 23, 16:06

Offense and Defense in Daites

Genre: Shoujo; Shounen ai; Comedy; Fantasy; Isekai; Romance
View: 20,000 views
Author: Nodoka makihara

Chapter 4 Oct 12, 01:03
Chapter 3 Jul 14, 12:05

Oku no Hosomichi

Genre: Historical; Slice of life
View: 20,000 views
Author: Matsuo bashou

Chapter 5 Sep 29, 02:00
Chapter 4 Sep 29, 02:00