Meg's feed

In the last season we see that the lady is taking mieum somewhere to kill him and while she's on it she tells him how obsessed the seme is and that he's better off without mieum so he could avenge his mother.

In the next season we see that he's back home and the seme gets back and sees mieum home. There's a small blank in between and what basically happens is the lady who kidnapped mieum gets caught and the seme is obviously informed of what had gone down (duh) that's why we see him telling mieum that he preferred if he had no memories of the past at all.

And while she's being dragged away she tells mieum how he's going to see what the seme is capable of. And hence we are seeing what he is truly fucking capable of, that's why he's chained to the bed. Mieum can't do anything about it since he willingly walked back inside the house after ignoring the woman's words.

The only thing that's not explained yet is what the other guy who I believe is the stepbrother told mieum.