Ending

There's only 6 chp, later in chp 3 we'll see that uke saw younger picture of seme and he feel like have seen him before. Then in chp 4 uke goes outside and when he come home seme already there (he was so happy before thinking uke is in the house and probably got scared when he's not there) and seme drugged uke. Then backstory uke beat up seme's abusive father that's why he has sort of attachment towards him.

Now the fuck up part is that after they had sex he just inject uke with few medicine(dunno what kind) and there's bruise in uke's arm also he is collared. The expression uke make is probably the moment most reader realise how fucked up it is