im sorry im confused. why cant he take the colar off? (idk how to spell don't mind that)

or like does he already have a dom that we have not seen @-@

yeah he was forcefully "mated" (in omega verse terms) when he presented

I'm not that familiar with the dom-subverse but from what I got from this chapter was he had an traumatic experience with a previous dom who gave him the [command] to keep it on. （/TДT)/ ヽ(`Д´)ﾉ
So I am guessing his body is instinctively keeping it on and is unable to disobey it so that is why he is unable to take it off.
(〜￣△￣)〜

(=・ω・=) thank you

thanks (=・ω・=)