Eden's Zero manga summary:

The amusement park planet of Granbell Kingdom has been abandoned for 100 years. Rebecca and her talking cat Happy are the first visitors in years, causing excitement among the robot inhabitants. However, Rebecca soon discovers that she’s not the only human in the park!

Shiki has lived on Granbell for most of his life after being taken in by the Demon King robot, who became his grandfather-figure. Now he does repairs for the robots in the park. But the robots then strangely turn against Shiki to force him to leave the planet with Rebecca in order to fulfill their promise to the Demon King, who knew Shiki was destined for greatness. With the ancient powers of Ether Gear, Shiki begins his journey into space, where dragons roam the stars!
Chapter name View Time uploaded
Chapter 61: Enterasernal 17,463 3 day ago
Chapter 56: Reset 34,444 Aug-13-19
Chapter 55: Black Rock 31,913 Jul-31-19
Chapter 51: Stones 35,593 Jul-03-19
Chapter 49: Captain Conner 34,734 Jun-19-19
Chapter 42: Pino's Dream 40,227 Apr-24-19
Chapter 41: Fireworks 34,264 Apr-24-19
Chapter 40: Plan C7 37,136 Apr-17-19
Chapter 38: 22 Shots 37,255 Apr-03-19
Chapter 36: The Gia 38,330 Mar-26-19
Chapter 29: Iron Hill 51,434 Jan-30-19
Chapter 28: New Companions 42,395 Jan-23-19
Chapter 26: Two Sisters 29,873 Jan-10-19
Chapter 24: Sister Ivry 41,560 Dec-14-18
Chapter 23: Million Bullets 44,148 Dec-05-18
Chapter 21: Soul Blade 41,324 Nov-21-18
Chapter 20 45,240 Nov-14-18
Chapter 17: Collection 45,537 Oct-24-18
Chapter 16: Sister 38,242 Oct-24-18
Chapter 14: Rebirth 34,498 Oct-24-18
Chapter 13: Edens Zero 33,534 Oct-24-18
Chapter 11: Machina Maker 32,171 Oct-24-18
Chapter 9: Vs. Foot Brothers 30,170 Oct-24-18
Chapter 7: Iron Tears 32,299 Oct-24-18
Chapter 6: Thief 32,977 Oct-24-18
Chapter 4.1: Extra 1 33,489 Oct-24-18
Chapter 4: Nouma 35,113 Oct-24-18
Chapter 3: Adventures 38,938 Oct-24-18