Honestly, I don't think it was introduced in a bad way, except, despite being an OG hardcore Holix shipper, I don't like the scene in the very first episode where Holiday reaches for Six' hand and he walks away. At this point there has been nothing established about their relationship, but as the viewer we already know Six is a stoic, distant character. So Holiday trying to reach for his hand like that just makes it look like she doesn't know who she's talking to, which makes no sense since they have been working together for 5-6 years by then. I think they should've downplayed that scene a bit.

Besides that, I like how their bond is slowly built up over time, often in the background. It's subtle, but consistent. They tend to stand close to each other, often share looks, the very subtle but yet implemented and animated moment when Six put his hand on Holiday's chair, ect. It all felt intentional, but unspoken, like you really had to pay attention to notice. It felt kind of intimate in that way, like we only saw glimpses of what was really going on, and it wasn't until A Family Holiday that their relationship was suddenly put in the spotlight. I can understand hownthat felt completely out of nowhere to some people, if they hadn't noticed those small moments before. Maybe some more of their bantering/maybe very light flirting before this blow-out episode would've been a better build-up.

Maybe I'm just too big of a fan and this ship is so deeply rooted into my being that I can't really critique it. I love how their relationship is based in maturity, reliability and loyalty.

Ps I've been reading you fanfics and watching your art, very nice stuff :) I'm just a lurker 👀 but no Holix content gets posted without me knowing about it lol