When Nero met with Emilia and Asteria, he found Emilia fighting with the woman who was selling horses. Apparently, Emilia was trying to pet the horse, but the horse kicked Emilia. And instead of apologizing, the woman started yelling at Emilia.
Nero sorted out everything by buying all the horses and setting them free in front of the woman.
Then, they bought a luxurious carriage with a mattress inside it. The carriage needed three hours to run, but Nero bought four in case something happened to one of them.
The carriage also had a facility to drive from inside, so Nero didn't have to sit outside and drive the carriage all day. Now, he can drive while having fun with the girls.