Seinen Manga

Action , Adventure , Comedy , Fantasy , Harem ,... Status: Ongoing Ore No Level Up Ga Okashi! Chapter 16

Comedy , Drama , Harem , Romance , School life ,... Status: Ongoing Ore No Sora Chapter 27

Drama , Romance , Seinen , Slice of life Status: Ongoing Ore No Yome Wa Aitsu No Tsuma Chapter 21

Comedy , Harem , Romance , School life , Seinen ,... Status: Ongoing Ore Wa Lolicon Ja Nai! Chapter 56.2

Action , Adventure , Drama , Seinen Status: Ongoing Oren's Chapter 18

Comedy , Seinen , Slice of life Status: Ongoing Orenchi No Maid-San Chapter 71

Action , Drama , Romance , School life , Seinen Status: Ongoing Ori Of The Dragon Chain - Chapter 1.5

Comedy , Romance , School life , Seinen , Slice of life Status: Ongoing Osabori Jouzuna Koumukai-San Wa Ore Wo Nogasanai!! Chapter 3

Comedy , Drama , Romance , School life , Seinen Status: Ongoing Osananajimi Ni Najimitai Chapter 24

Comedy , Drama , Gender bender , Seinen , Slice of life Status: Ongoing Oshi Ga Budoukan Ittekuretara Shinu Chapter 37

Comedy , Romance , School life , Seinen , Shoujo ai Status: Ongoing Oshi V Ga Oshiego De Watashi Ga Mama De!? Chapter 27

Comedy , Fantasy , Seinen Status: Completed Oshiete! Kirara Fantasia Chapter 27

Historical , Mature , Seinen Status: Ongoing Oshigerinanshi - Rouchou Tanten No Yotogibanashi Chapter 8

Comedy , Historical , Romance , Seinen Status: Ongoing Oshitone Tenzen Chapter 1

Drama , One shot , Seinen , Slice of life Status: Completed Osmotic Pressure Chapter 0

Comedy , Seinen Status: Ongoing Ossan, Tensei Shite Tensai Yakusha Ni Naru Chapter 4

Action , Comedy , Martial arts , School life , Seinen Status: Ongoing Osu!! Karatebu Chapter 246

Action , Adventure , Comedy , Horror , Seinen ,... Status: Ongoing Oswald The Overman In The Lesser Planes Of Hell Chapter 6

Comedy , Drama , Medical , Seinen Status: Ongoing Otanko Nurse Chapter 31.2

Comedy , Mature , Romance , School life , Seinen ,... Status: Ongoing Otoko Wo Misete Yo Kurata-Kun! Chapter 7

Action , Martial arts , School life , Seinen Status: Ongoing Otokojuku Gaiden - Daigouin Jaki Chapter 28

Comedy , School life , Seinen Status: Ongoing Otokojuku Side Story: Crimson!! Women's Private School Chapter 12

Action , Historical , Mature , Seinen Status: Ongoing Otome Chikku Sensou Chapter 2

Comedy , Romance , Seinen , Shoujo , Supernatural Status: Ongoing Otome Monster Caramelize Chapter 25

Seinen Status: Completed Otonaninattara-Bijinninarukochan Chapter 1

Comedy , Romance , Seinen , Slice of life Status: Ongoing Otonari-San Game Chapter 28

Drama , Josei , Mature , Psychological , Romance ,... Status: Ongoing Otto No Chinpo Ga Hairanai Chapter 7

Action , Comedy , Drama , Historical , Seinen ,... Status: Ongoing Oudou Rakudo No Vigilante Chapter 2

Drama , Fantasy , Historical , Seinen Status: Ongoing Oukoku Monogatari Chapter 10

Drama , Seinen , Shounen ai , Slice of life Status: Ongoing Our Colors Chapter 1

Action , Adventure , Comedy , Cooking , Doujinshi ,... Status: Ongoing Our Relationship Is... Chapter 69

Action , Seinen Status: Ongoing Out Chapter 214

Seinen , Slice of life , Supernatural Status: Ongoing Owari Nochi, Asanagi Kurashi. Chapter 14

Comedy , Drama , Seinen , Slice of life Status: Ongoing Oyu De Hokorobu Yukime Senpai Chapter 3

Adventure , Drama , Horror , Mystery , Psychological ,... Status: Ongoing Panagia's Territory Chapter 9.1

Drama , Fantasy , Romance , Seinen Status: Completed Pandemonium - Majutsushi No Mura Chapter 12

Comedy , Harem , Romance , School life , Seinen ,... Status: Ongoing Pansuto Chapter 69

Drama , Romance , Seinen , Erotica Status: Ongoing Papa No Sexy Doll Chapter 13

Comedy , Cooking , Seinen , Slice of life Status: Ongoing Papa To Oyaji No Uchi Gohan Chapter 2

Action , Horror , Seinen Status: Ongoing Paper Theatre Chapter 15

Comedy , Drama , Harem , Romance , School life ,... Status: Ongoing Paradise Of Innocence (Digital Colored Comic) Chapter 3

Horror , Psychological , Seinen Status: Ongoing Paranoia Trap Chapter 8