
They break up after his killings has been found out. As like objectively if you were dating someone and it turns out they have been killing people would you be able to calmly date them even if the feelings were mutual
2nd option is they stay together but taemin hands himself in and they they get together if he is somehow able to not get a life sentence.
Unlike other stories where one of the characters kills people. He isn't aware of Taemin being a killer and it seems to be a lot more of a semi-realistic approach on this

Good story good relationship
But omg i wish Kou and Ginga had moments where they actually wanted eachother and not just only when yuu was around/not paying attention to them. Not once did they fuck just the two do them cause they wanted too. Like we are aware they love each other but they never showcase leaving all the lovey dovey moments entirely focused on yuu with one of them of yuu with both of them.
A simple scene of Ginga or Kou wanting to hold hands just them too. Or giving a kiss or something that wasn't initiated by yuu would have been perfect. To show they at least love each other too, show not tell after all. A. Lot of telling not enough showing.
Overall I wish it was more equal in affection as I think Kou and Ginga are actually a really cute pairing for the very few times something happens. ( ̄へ ̄)
10/10 story perfect coming of age romance the pacing was lovely and I loved all the characters. The main couple were the stars (pun intended). This story had no unnecessary drama everything issue was there to push a character forward.