Yuri Briar was introduced in Spy x Family‘s Season 1 as Yor’s younger brother. When we first meet him, Yuri is concerned for his sister, as she has never had a romantic relationship, despite everyone else her age already dating or married. Yuri encouraged his sister to meet guys, because he will become too busy with his job to take care of her.
From the outset, this may seem wholesome for what siblings can do for each other, but there is more to Yuri than meets the eye. He is more than just Yor’s brother, and it appears he will play an important role later on in the story. As such, fans are curious about Yuri Briar. After all, he also shares attractive looks like his sister.
Read More: Is Yor In Love With Loid?
1. Yuri Works for the Secret Police
Yor, Loid, and Anya are not the only ones hiding their true identities. Yuri also harbors a secret – he actually works for East or Ostania’s State Security Service or Secret Police. It is an organization meant to protect Ostania from spies coming from the West or Westalis. Naturally, they view WISE or the Westalian Intelligence as their enemies. In other words, Loid Forger’s spy identity as Twilight is a threat to them.

The Secret Police also served as the state surveillance in Ostania. This is to ensure public domestic order, and to get rid of any opposing forces.
As such, Yuri despises Twilight a lot. Whenever Twilight is brought up in their headquarters, his whole demeanor would change. He will become angry and cold; quite unforgiving towards anyone he questions about the spy.
2. Yuri Covers His Identity As a Diplomat
To hide his true occupation of being in the Secret Police, he fakes his identity as a civil servant in the foreign ministry. This is what he tells Yor and to everyone he knows. This is similar to how Loid, Yor, and Anya does. Loid has a cover being a psychiatrist, Yor as a clerk, and Anya being a normal 6-year-old. There have been implications that Anya is younger than 6 years old, despite her claims of being one.

3. Yuri’s Goal Revolves Around His Sister
In connection to his work in the Secret Police, his motivations for joining such is because he wanted to protect the place his sister lives in. He placed immense value on family, and is very appreciative of what Yor did for him. His way of repaying Yor is his protection.
This is because he and Yor lost their parents at an early age. Yor raised him with all that she has, and they only have each other.

This was seen when he was interrogating Jim Hayward, and he starts the conversation by sharing his sister’s marriage news. It indicates that Yor will always be Yuri’s priority, and that he always thinks of her even when he’s at work.
He is also understandably protective of Yor, as he wanted to really know the guy she’s meeting. He hopes the guy is a good person, and if not, Yuri will not hesitate to drive them away.
It can be truly heartwarming to know how much Yuri treasured his sister… until we watched the episode when he visited the Forger household.
4. Yuri Has A Sister Complex
When he visited his sister, it was shown that he actually harbored romantic feelings towards Yor. Yes, you have read that right. This is his biological sister we are talking about. They are not step-siblings or just a sibling figure. He has romantic feelings for her.
This was shown when Loid and Yor are about to kiss, and he wanted to stop it. He got a flashback when he was a kid, stating explicitly to his sister he wanted to marry her.

Yuri also considerably showed jealousy and even insecurity towards Loid. Loid is perfectly capable of maintaining his image as a decent husband. He cooked delicious dinner for them, warm, and accommodating. His seemingly stable occupation as a psychiatrist are also plus points as well.
This is why Yuri got himself drunk because of his frustration. He is also intent in determining any negative aspects Loid may have. As such, he also notices the small things in Loid and Yor’s relationship, and is quick to doubt it. This occured when Loid and Yor became flustered when they touched hands.

From a psychological standpoint, Yuri’s sister complex may be understandable because he lost his mother very early. Yor became a combined mother and sister figure to him when he needed it. She was the only one who took care of him. Yor is very loving and nurturing towards Yuri growing up, so he grew deeply attached to it.
5. Yuri Is Usually Calm & Sensible… Unless It Involves His Sister
Yuri can also be a comic relief in the show. The entire scene with him in the Forger household is nothing short of humorous.
When he was working, he gives off this calm yet dangerous aura. He is a sensible and cunning man from the Secret Police, posing a threat to our protagonist, Twilight. But whenever Yor is involved, he just loses that intimidating vibe.
The fact that he believed Yor’s lie that she had “forgotten” to tell him that she got married is the start, which even shocked Loid in disbelief.

In the next, he also freaks out and drank his wine rapidly when he could not think of any negative trait Loid has. Hence, he became drunk, and the alcohol’s influence probably made him more animated.
He also yells at his sister to stop kissing Loid, which led to Yor slapping him hard across the room. The entire shenanigans even led Loid to think if the Briars are ever truly like this. Moreover, this shows that Yor and Yuri are really siblings – both having incredulous crazy sides and… having low alcohol tolerance.

He Will Probably Have an Important Role Later On
Loid was able to deduce that Yuri works for the Secret Police. This led to him becoming suspicious of Yor. He thought that Yor is probably colluding with her brother to get close to him. When Loid was able to find out that Yor is innocent, he still remained vigilant against Yuri.
Considering that the two are now connected through Yor, it will be interesting to see the turn of events. Undoubtedly, they will meet very often because Yuri loved his sister. Will Yuri be able to find out that Loid is Twilight? What will happen to Loid and Yor if that were the case? Will Yuri become a major obstacle for Loid in the future?
I guess we will just have to see in future installments of Spy x Family!
Read More: Anya and Bond Forger: A Connection That Transcends Family