Reborn as a Space Mercenary: I Woke Up Piloting the Strongest Starship! Novel Volume 4 was written by Ryuto and illustrations by Tetsuhiro Nabeshima.

With their wild vacation behind them, Hiro and his crew finally reunite the count and his granddaughter. Then it’s time for him to get cozy with his new robotic maid! He takes her in for an upgrade, which makes her stronger and sexier than ever. When duty calls, will Hiro and his heavily armed android be able to take down a cybernetic soldier and put the noble feud to rest?