bro..if this was an horror story TJ character would have been like sangwoo from killing stalking (he even broke ian's leg like sungwoo broke yoombun's☠) imagina having a ex lover that brokes your leg, manipulates, and has an toxic obsessive behavior so they keep coming back to your life? TJ character is perfect for an horror story, not an love triangle one.
See this is why I avoid love triangles especially this story.
When it first came out, I didn’t know it was a love triangle until I saw TJ. Then I dropped it.
I heard about the fights and spoilers and now the ending. I predicted it right away that TJ was going to win and he did.
Yikes about the story telling though.
Someone told me that wetsand is similar to back to school but it’s the opposite version where the good guy didn’t win and based of your description (especially the broken leg), it makes me wonder if the author was a fan of back to school and just didn’t get the message?

i've been reading this manhwa since the first upload from jujucat from bato (rip) and as a person who read all chapters 3 times until the end of this i must say..this manhwa is messy written and has no development from the characters beside jo, and i'll explain why.
When we were first introduced to Ian, Jo was the mc (if you dont believe me read the first chapters again) all we had was his POV, until TJ was introduced.
After TJ was introduced Jo was still the mc until chapter 30 to 40, when Ian's POV was added and we only had his POV, what he was thinking and actions and everything..but then something started and this was the very beginning of the disaster..TJ crazy ahh fans. Fighting constantly in whatever comment about the manhwa..from twitter to bato, to bato to whatever social media that posted about wet sand..if you read this manhwa on bato before there's no way couldn't have see it...lololol even the celebrity of bato gleenmacqueensimp was in the fights with some TJ fans..and then everything went down for good. The chapters started to walk nowhere, ian getting fucked by Jo, ian getting fucked by TJ, some story about the gang, and more and more fucking between Ian and the ml's..TJ was portraid as a toxic character being manipulative, toxic, egoistic and obsessed ex lover to Ian since he showed up (the guy literally broke Ian's leg☠ and admited to Ian that he was doing some guilt trap on Ian to make him stay, kept slutshaming Ian and some other things lolol) Ian character in the beginning was someone who was looking for another perspective, that was trying to flee from his thug lifestyle and was searching for healing..and then we have Jo, literally just and average guy but was a try hard to Ian, and in general a good guy, who liked taking pictures and was leading a normal life. Remember about what i said about Jo being the one who had a development?? so, after a lot of fights in twitter about Ian and TJ and Ian and Jo, the author said who they favorite was, and it was TJ, so Jo is the only one..because he literally has no space in this story lolololol, he was just a pretty side character and thats it guys..at the end the author favoritism ruined the story and you can see it in the last chapters, TJ never actually apologize for being a shitty guy, and never really said that he loved ian (he has a tattoo but..the dude literally broke ian's leg a tattoo is a fucking nothing without development)..and Ian returned to square 0 towards the end, he character was reduced as TJ love interest and nothing more than that, he said to Jo he wasnt returning to TJ because he was trying to find himself but at the end he went back to TJ and we saw nothing about his jorney..and Jo just lead a normal life like always..there is open plots, and things that we're never going to know..this story started as a 10/10 but the end was 4/10 to me..and althrought the TJ fights was kinda of stupid, even TJ fans (the normal ones) said this end was rushed and nonsense and they never got an explanation..this story ended in a disaster and the author was childish..thats it.