You might love love, but do you love it enough to wear a giant "LOVE" on the helmet you wear into combat? Because that's what the trusted Uesugi commander, Naoe Kanetsugu, was famous for!
The message that enraged Ieyasu would, 
in time, be known as Naoe's Letter,
A mensagem que deixou Ieyasu em fúria,
posteriormente, ficou conhecido como "A Carta de Naoe",