Here are some feats in case anyone wants to know what Jin does.
Even before his timeskip which he turned to a straight up god, Jin managed to fight, and almost kill
Tae Mu-Kang, the same dude who has been called a martial arts master multiple times. Despite Tae having an enormous AP advantage to the point that any one of his attacks would kill Jin, Jin managed to dodge everyone single one of his Danmaku's, which have been compared to raindrops. Tae has also been able to defeat
Dam Soo-Cheon, the same dude stated to be able to master new martial arts in a very short time frame, and has managed to defeat 100 martial artists, many of them being masters (Should note that it was all 1V1s), Tae managed to absolutely fodderize Dam.
Jin managed to gain an enhanced version of "Perception", which lets Martial Artists see the opponent's next moves by seeing their gaze and the twitch of their muscles, Dam also has this ability but got shitstomped by Tae. Jin's perception being so much more enhanced that everything around him has become sort of his "Absolute Dominion" that no change, no matter how small, could escape his notice. Due to it, it was even stated that he would be EASILY able to dodge Tae Mu-Kang's raindrop-like danmaku, and managed to dodge every single one of his attacks except for the last, mostly due to him not mastering his moves yet and the fact he had been carrying someone on his back and had to protect them.
His senses are absolute bonkers too, to the point that even pre-timeskip, he is able to sense for dozens of miles away, even small stuff like the rustling of leaves or the buzzing of bees.
Should also note that everyone in the series has trained from the age of six to seven years old, while Jin barely had any compared to Dam and everyone else Tae fodderized.
All of this is pre-timeskip, with post-timeskip mostly just beating the shit out of someone who has trained for 24/7, with the latter not even being able to touch the seams of Jin's clothes.
