Nico is, for the most part, described as very "bright", "bubbly" and "cheerful". He is known to be extremely enthusiastic and bouncy and usually goes about his day with a smile. He often makes jokes and loves to tease the Princess Elect, both in his route and other characters' routes.

He's also very creative and will often be the one to come up with a "great idea", which will sometimes be slightly unorthodox but will work nonetheless. Nico has an extremely supportive and kind personality, for the most part, the latter point being elaborated below. He’ll often give help and advice not only to the MC but to the other suitors when they need it; he's extremely helpful and reliable as the Princess Elect's butler.

He’s sensitive to other people’s emotions and reads the atmosphere extremely quickly and accurately, meaning that he’ll often take hints from those around him with ease. As such, he’s just as sharp as Leo when it comes to sensing that someone’s upset or struggling with something, and he is also able to pick up on when Giles is unwell.

(Bottom Line: He's a softboi who is also a spy)