Where's the promised harem of Heroic Spirits? Why is it all just me?

After traveling through time, he also obtained the most powerful heroic spirit incarnation legion system. The future of sweeping the world with an endless army of clones is just around the corner!
But...why are there only female heroic spirits?
……
"Can you tell me how you got so many loyal and beautiful wives?" Fujimaru Ritsuka asked in shock.
"The main thing is...we are of the same mind."
Surrounded by beautiful girls, Bree looked away awkwardly.
(Reminder for the front row: The male protagonist can transform into various female heroic spirits, and use heroic spirits as clones.)