Sci fi Manga

Action , Adventure , Drama , Horror , Martial arts ,... Status: Completed Of The Dead Chapter 8

Fantasy , Romance , Shoujo , Drama , Sci fi Status: Completed Ohimesama no Recipe Chapter 5

Action , Adventure , Comedy , Cooking , Doujinshi ,... Status: Ongoing Oita Ga Sugiru Wa Koneko-Chan Chapter 5

Drama , Psychological , Sci fi Status: Completed Omniscience Chapter 8

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

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

Action , Mystery , Sci fi , Martial Arts Status: Ongoing One Way Chapter 2

Action , Drama , Supernatural , Comedy , Sci fi ,... Status: Ongoing One-Punch Man Chapter 183

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

Romance , Shounen , Drama , School Life , Comedy ,... Status: Completed Onegai Teacher Chapter 14

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

Action , Supernatural , Comedy , Sci fi Status: Completed Onepunch-Man (ONE) Chapter 151

Action , Fantasy , Shounen , Supernatural , Comedy ,... Status: Completed Oneshots Chapter 5

Ecchi , Comedy , Sci fi , Slice of Life , Seinen Status: Completed Onsen Wakusei Chapter 4

Comedy , One shot , Sci fi Status: Completed Oops. Chapter 1

Action , Psychological , Sci fi Status: Ongoing Organ Divider Chapter 19

Doujinshi , One shot , Sci fi , Yaoi Status: Completed Organic Chapter 1

Action , Fantasy , Drama , Sci fi Status: Ongoing Origin Chapter 87.5

Action , Drama , Fantasy , Sci fi , Shounen Status: Ongoing Original Chronicle Magical Girl Lyrical Nanoha The 1St Chapter 6

Ecchi , Shounen , School Life , Comedy , Sci fi ,... Status: Completed Otoshite Appli Girl Chapter 12

Drama , Sci fi , Yaoi , Historical Status: Completed Ouji no Hakobune Chapter 7

Supernatural , Sci fi , Slice of Life , Adventure Status: Ongoing Our Lives After the Apocalypse Chapter 18

Action , Sci fi , Shounen , Supernatural Status: Ongoing Our Lonely War Chapter 3

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

Fantasy , Horror , Mystery , Sci fi , Shounen ,... Status: Ongoing Outer Zone Chapter 57

Action , Ecchi , Romance , Drama , Supernatural ,... Status: Completed Outlanders Chapter 35

Action , Sci fi , Adventure , Seinen Status: Completed Outlaw Star Chapter 14

Action , Comedy , Mystery , Sci fi Status: Ongoing Outta Fire Chapter 1

Comedy , Sci fi , Supernatural , Webtoons Status: Ongoing Over The D Chapter 13

Sci fi , Adventure , Seinen , Mecha Status: Completed Overman King Gainer Chapter 30

Mystery , Psychological , Sci fi , Horror Status: Ongoing Oversimplified SCP Chapter 177

Comedy , Fantasy , Mature , Romance , Sci fi ,... Status: Ongoing Owari To Hajimari No Miles Chapter 12

Drama , One shot , Sci fi Status: Completed Owarinaki Gogo Chapter 0

Action , Drama , Mystery , Romance , Sci fi Status: Ongoing Oz Chapter 32.2

Action , Ecchi , School Life , Comedy , Sci fi ,... Status: Completed Oz - Tokiya Seigo Chapter 14

Fantasy , Romance , Shoujo , Sci fi Status: Completed P Angel Chapter 2

Shounen , Sci fi Status: Completed Pact Chapter 1

Action , Adventure , Fantasy , Sci fi , Shounen ,... Status: Ongoing Panfia Chapter 19

Sci fi Status: Ongoing Pantheon Chapter 2

Shoujo , Drama , Comedy , Sci fi Status: Completed Papa To Arukou Chapter 5

Romance , Shoujo , Drama , Supernatural , Psychological ,... Status: Completed Para Paru Chapter 41

Action , Shounen , School Life , Supernatural , Comedy ,... Status: Completed Paradox Blue Chapter 13