Yk one thing the BSD fandom hasn’t really realized yet is that Suegiku have actually known each other just as, if not LONGER than Soukoku. Seriously. Ik that sounds crazy, but just hear me out:

First of all, we know Jouno joined the Hunting Dogs 6 years ago. That means he’s known Tetchou for at LEAST six years now

Now you may think it’s a little bit of leap to just assume that they knew each other for all those 6 years. After all it’s entirely possible that Tetchou joined after Jouno did, and so the two could’ve only known each other for as little as a year. However, I honestly don’t think that’s the case, and Tetchou did in fact join BEFORE Jouno.

Admittedly, this is just ultimately HC but it makes sense when u think about it. Out of all the Hunting Dogs. Tetchou is easily the MOST committed to justice and his job. He has passion for it almost unlike any of the other members. I think that he (unlike Tachihara, for instance) actually TRAINED and maybe actually applied to become a Hunting Dog the normal way, kinda like how u can apply to become a cop. In other words, based on his very evident dedication, you can tell that this was a career he CHOSE to go into. And considering that career planning requires, well, a PLAN, one that doesn’t necessarily have to take that many years (depending on the career), and the fact that current Tetchou seems like he’s already in his early to mid 20s max (most of the young adult characters in BSD tend to be in that range- Kunikida, Dazai, Ranpo), then 6 years ago (when Jouno joined) he would’ve most likely have almost completed or already completed his training and become a HD member

Ofc, u can argue that his training could’ve taken longer, so he still could’ve joined after than Jouno. But considering the fact that they took in Tachihara when he was like only 15 (I think?) mostly because of his ability, I don’t think the official training and application process actually takes THAT long. Or if does, then you can easily speedrun all that time by having an OP ability, regardless of ur actual age. (They’re kinda like ADA and PM in that sense; age literally does not matter if u have a broken power lol that can make up for that lol) And considering the fact that Tetchou HAS an OP ability and is literally the strongest Hunting Dog, I feel like he would’ve been accepted for the job sooner rather than later. So yeah, he would’ve already been a HD by the time Jouno joined.

But 6 years ago is just when Jouno OFFICIALLY joined the HD. That’s not even mentioning the time it must’ve took to find and arrest him in the first place. So considering Jouno was an executive of an infamous mafia group, I bet it would’ve taken more than just Fukuchi to capture him. Other HD members, like Tetchou and Teruko would’ve most likely been on the mission as well.

Especially because (while this is mostly HC territory again) it rly seems the HD took down, not just Jouno, but most likely his entire mafia group. We never hear any mentions of them in the present and it just doesn’t make sense that a group as ruthless and THOROUGH as the HD would capture Jouno,(someone who can literally hear them coming MILES away and literally disappear into thin air!) but somehow not anyone else in the mafia group. So if they rly did take down everyone, then that definitely would’ve been a job for more than just one person. Meaning Tetchou definitely would’ve been involved in Jouno’s arrest. Which is how they might’ve actually known each other for even longer than those 6 years, depending on how long it took to arrest Jouno. (Btw, SKK have known each other for 7 years)

I think the reason we’ve never actually realized this is because unlike SKK, SGK aren’t freaks that constantly bring up how long they’ve known each other every five minutes

Also, you could argue that SGK understand each other almost as well as SKK, considering Jouno can literally read Techou’s body like a book and that Tetchou is capable of perfectly describing Jouno to an absolute T.