Sci fi Manga

Action , Shounen , Sci fi Status: Completed Red Raven Chapter 44

Shounen , Sci fi , Mecha Status: Completed Reideen Chapter 7

Action , Fantasy , Sci fi Status: Ongoing Reinvigorated Into an Alien World Chapter 25

Action , Shounen , Mystery , Sci fi Status: Completed Relive Chapter 2

Action , Drama , Mecha , Sci fi , Supernatural Status: Ongoing Reminder To Forget Chapter 2

Action , Shounen , Sci fi , Adventure Status: Ongoing Remote Sister Battles Chapter 7

Drama , School Life , Sci fi , Yuri , Gender Bender Status: Completed Renai Idenshi XX Chapter 17.2

Comedy , Drama , Fantasy , Romance , School life ,... Status: Ongoing Renai Plus Alpha Chapter 36

Comedy , Sci fi , Shounen Status: Ongoing Renai Slg Chapter 2

Shounen , Comedy , Sci fi Status: Completed Renai☆SLG Chapter 2

Action , Drama , Mystery , Psychological , Sci fi Status: Ongoing Rendezvous Chapter 100

Action , Drama , Romance , School life , Sci fi ,... Status: Ongoing Repeating Your End Together Chapter 5

Drama , Comedy , Mystery , Sci fi , Yaoi Status: Completed Replicant no Kiss Chapter 5.5

Mystery , Sci fi , Seinen Status: Completed Reset Chapter 6

Romance , Drama , Comedy , Sci fi , Seinen Status: Completed Ressentiment Chapter 49

Action , Fantasy , Shounen , Drama , Sci fi ,... Status: Ongoing Return of the Youngest Grandmaster Chapter 79

Action , Sci fi , Seinen , Horror Status: Completed Reversal Chapter 27

Action , Drama , Psychological , School life , Sci fi ,... Status: Ongoing Revolt Chapter 4

Action , Sci fi , Seinen , Sports , Mecha Status: Completed Rideback Chapter 7

Ecchi , Shounen , School Life , Supernatural , Comedy ,... Status: Completed Rising x Rydeen Chapter 29

Action , Fantasy , Comedy , Sci fi Status: Ongoing Risou no Musume Nara Sekai Saikyou Demo Kawaigatte Kuremasuka Chapter 18.2

Adventure , Comedy , Sci fi , Seinen , Slice of life Status: Ongoing Roaming The Apocalypse With My Shiba Inu Chapter 35.5

Action , Fantasy , Shounen , Sci fi , Adventure Status: Completed Roar Scyther Chapter 4

Shounen , Sci fi Status: Completed Robo To Usakichi Chapter 9

Action , Drama , Mystery , Sci fi , Adventure ,... Status: Completed Robot Keiji Chapter 23

Romance , Shounen , School Life , Mystery , Psychological ,... Status: Completed Robotics;Notes Chapter 12

School Life , Sci fi , Seinen Status: Completed Robotics;Notes - Revival Legacy Chapter 15

Sci fi , Seinen Status: Ongoing Rock Me Amadeus Chapter 1

Action , Shounen , School Life , Comedy , Sci fi Status: Completed Rocket Princess Chapter 30

Action , Adventure , Mecha , Sci fi Status: Ongoing Rockman Dr Wily's Revenge Chapter 8

Action , Sci fi , Mecha Status: Completed Rockman Megamix Chapter 5

Action , Shounen , Sci fi Status: Completed Rockman X Chapter 13

Action , Drama , Mecha , School life , Sci fi ,... Status: Ongoing Rockman X3 Chapter 16.2

Action , Shounen , Comedy , Sci fi Status: Completed Rockman Zero Chapter 6.5

Action , Sci fi Status: Completed Rockman ZX Chapter 14

Comedy , Drama , Sci fi , Shounen Status: Ongoing Rockman-San Chapter 44

Sci fi , Shoujo ai , Yuri Status: Ongoing Roid Chapter 10

Comedy , Cooking , Fantasy , Historical , Romance ,... Status: Ongoing Roll With The Beast Chapter 82

Adventure , Fantasy , Sci fi , Shounen , Webtoons Status: Ongoing Room Of Swords Chapter 164

Action , Shounen , Comedy , Psychological , Sci fi ,... Status: Completed Rose Hip Zero Chapter 14.5

Drama , Sci fi , Seinen Status: Completed Route 20 Chapter 5

Romance , Sci fi , Seinen , Slice of life Status: Completed Ruka To Ita Natsu Chapter 27