Seinen Manga

Comedy , School life , Seinen , Slice of life Status: Ongoing Okaa-San (10-Sai) To Boku Chapter 18

Seinen , Slice of life Status: Ongoing Okan Chapter 7

Romance , School life , Seinen , Slice of life Status: Ongoing Okashiratsuki Chapter 24

Action , Adventure , Fantasy , Harem , Horror ,... Status: Ongoing Oki No Doku Desu Ga, Bouken No Sho Wa Maou No Mono Ni Narimashita. Chapter 1

Comedy , Romance , Seinen , Slice of life Status: Ongoing Okite Kudasai, Kusakabe-San Chapter 11.5

Comedy , Romance , Seinen Status: Ongoing Okusama Wa Shougakusei Chapter 3

Comedy , Romance , Seinen Status: Ongoing Older Elite Knight Is Cute Only In Front Of Me Chapter 38.3

Cooking , Drama , Seinen , Slice of life Status: Ongoing Oli Oli Soup Chapter 72

Seinen , Sports Status: Ongoing Olympic Circles Chapter 12

Action , Horror , Seinen , Supernatural , Erotica Status: Ongoing Omega (Matsumori Tadashi) Chapter 1

Action , Adventure , Drama , Psychological , Seinen ,... Status: Ongoing Omega Tribe Chapter 7

Action , Drama , Fantasy , Romance , Seinen Status: Ongoing Omen Chapter 1

Drama , Historical , Sci fi , Seinen , Supernatural Status: Completed Omoide Emanon Chapter 1

Action , Adventure , Drama , Fantasy , Harem ,... Status: Ongoing On A Deserted Island With Beautiful Sisters Chapter 21

Fantasy , Romance , Seinen Status: Ongoing On The Way Home, I Got A Bride And Twin Daughters, But They Were Dragons Chapter 11

Action , Adventure , Drama , Horror , Mystery ,... Status: Completed One Day In The Life Of Ivan Dejavu Chapter 9

Comedy , Cooking , Seinen , Slice of life Status: Ongoing One Day Outing Foreman Chapter 150

Comedy , Romance , Seinen , Slice of life Status: Ongoing One Night Morning Chapter 2

Comedy , Mature , Romance , School life , Seinen ,... Status: Ongoing Onecha. Chapter 9

One shot , Sci fi , Seinen Status: Completed Onee-Chan No Imouto Chapter 1

Comedy , Harem , Romance , Seinen , Slice of life ,... Status: Ongoing Onee-Chan Wa Game O Suruto Hito Ga Kawaru Onee-Chan Chapter 18

Romance , Seinen , Slice of life Status: Ongoing Onee-San Is Invading!? Chapter 16

Action , Fantasy , Horror , Seinen Status: Ongoing Oneira Chapter 5

Action , Comedy , Fantasy , Mature , Mystery ,... Status: Ongoing Onepunch-Man Chapter 208

Comedy , Harem , Romance , Seinen , Supernatural Status: Ongoing Oni Ga Deru Ka Ja Ga Deru Ka Chapter 33

Action , Adventure , Drama , Seinen Status: Ongoing Onimushi Chapter 4

Action , Comedy , School life , Seinen , Shounen ,... Status: Ongoing Oninaki No Curse Holder Chapter 1.2

Action , Adventure , Comedy , Fantasy , Romance ,... Status: Ongoing Onna Kishi-San, Jusco Ikou Yo Chapter 12

Action , Adventure , Comedy , Fantasy , Romance ,... Status: Ongoing Onna Senshi Tte Motenai Desu Ne! Chapter 1.1

Romance , Seinen , Yuri Status: Ongoing Onna Tomodachi To Kekkon Shitemita Chapter 26

Comedy , Historical , Mature , Seinen , Supernatural Status: Ongoing Ooedo!! Un-Pluged Chapter 15

Drama , Psychological , Seinen Status: Completed Ookami Shoujo Laura Chapter 1

Adventure , Drama , Fantasy , Historical , Romance ,... Status: Ongoing Ookami To Koushinryou Chapter 99.1

Comedy , Harem , Romance , School life , Seinen Status: Ongoing Ookii Onnanoko Wa Daisuki Desu Ka? Chapter 74

School life , Seinen , Slice of life , Supernatural Status: Ongoing Ookumo-Chan Flashback Chapter 34

Comedy , School life , Seinen , Slice of life Status: Ongoing Ooya-San Wa Shishunki! Chapter 44

Comedy , Drama , Mystery , Seinen , Slice of life Status: Ongoing Op: Yoake Itaru No Iro No Nai Hibi Chapter 5.1

Drama , Psychological , Romance , Seinen , Slice of life Status: Completed Orange (Benjamin) Chapter 4

Comedy , Gender bender , Romance , Seinen Status: Ongoing Ore Ga Fujoshi De Aitsu Ga Yuriota De Chapter 6

Comedy , Seinen Status: Ongoing Ore No 100 Hanashime!! Chapter 4

Comedy , Drama , Mature , Romance , Seinen ,... Status: Ongoing Ore No Himekutsu O Haite Kure Chapter 16.5

Comedy , Drama , Romance , School life , Seinen Status: Completed Ore No Imouto Ga Konna Ni Kawaii Wake Ga Nai Chapter 27