Hi! I prepared a lil (no) ted talk about Sn's birth chart (the cartography of the sky at the time of someone's birth) but I'm no professionnal and I just have an interest in astrology so it could be wrong, but it could be right, who knows 👀
So Sn is a Cancer Sun. The Sun sign is your core personnality, and Cancer is a water sign (sensitivity, artistry and intuition) that's known to be emotional, protective (of themselves and others), empathetic, and in search of security.
We don't know Sn's rising sign which can help understand the way people see you, but we know his Moon sign which is Gemini. Basically, the moon sign is someone's true emotions, their internal world, their deepest desires. So, Gemini is an air sign (witty, social and very communicative though they can easily become stressed), and they're especially known for being social cameleons and in constant need of (intellectual) stimulation. When the Moon is in Gemini, the person can be quite irritable, friendly and smart, but with a tendency to internalize their feelings rather than experiencing them.
Now, Sn also has two Leo placements, in Venus and Mercury. Venus is the planet ruling over love and aesthetic, and Mercury is the planet of communication. Leos are bold and outgoing, extravagant sometimes. They also crave love and attention, especially when venus is in that sign. They can be loud about their affection, they love big displays, and as much as they love to feel special, they also are very demonstrative to the people they love (see how this fits Sn??)
Mercury in Leo is about charisma and passion. They express themselves very well, are creative, and can easily persuade others. They're born to lead and shine.
Moving on to Mars, it rules over passion and assertion. Sn's Mars is in Scorpio, which means that the sign is at home (so the sign is more powerful in that placement). Mars in Scorpio is stubborn and doesn't like middle grounds. They love challenges and are very ambitious.
So, looking at the big picture, I think it makes so much sense that San is describe as hard-working and passionate but that he also seems to make people at ease. The opposition of the cancer sun and the scorpio mars with the gemini moon and Leo placements also explain how he can be so shy sometimes while being loud and outgoing other times. He probably is a very very loyal friend who makes his loved-ones feel cared for, but I'd be curious to know if he's moody and sensitive because according to his birth chart, he could really be! 👀
(and for the kinkiest out there, Mars rules over sex but so does Scorpio, so a Mars in Scorpio could be very jealous and in need of a deep bond with their partner. With the Leo placements who also call for loyalty and devotion, it could explain why Sn is such a romantic!)
I don't know how long that is but it took me an hour to write krkkrk I hope it's enlightening or at least a little fun to read 💀