Nero did not know any man as jovial and lighthearted as his own father. Living in this cursed world, where at any time death may come for anyone, most people eventually turned cold and callous.
Lives were easily lost, which is why they were worthless, and at the same time the most valuable. Everyone tried to save as many lives as possible, yet accepted the truth that it just wasn't possible to save everyone. As such, as people aged, they usually shut themselves off and became more rigid.
His father was not like that at all. The man took nothing seriously, ever, and made it his life's mission to tease every single person he came across. For some incomprehensible reason, most people didn't seem to mind it either, and in fact, enjoyed his company.