"common" no, but is it doable? yes especially when it's an automatic door, you can basically program it to do whatever you want.
Why does it seem like every manwha with a psycho top has one
Plot convenience...besides most top lately is a manipulative, toxic mf so they gonna do whatever they can
I mean, at least this time it kinda makes sense because he's a security company guy so I'm sure he has easier access to it compared to some random rich guy. But either way I agree it's weirdly common for these guys to just have "lockdown another man in my house" mode
Is it common to have doors you can’t open from the inside? That seems so dangerous, like what if there’s a fire??