The premise, and what it signals
Everything on offer here is one-sided longing. Mila is the younger sister; the object is her sister’s boyfriend. The taboo in the tag is proximity and betrayal rather than blood relation (this is the person at every family dinner, not a step-sibling technicality) and the synopsis is framed entirely from her side. The boyfriend is not named. The sister is not named. Late-night journaling is the device carrying it, which tells you the series wants to be about wanting before it is about anything else.
That is a specific taste. If you want a scenario that sets up a situation and gets on with it, this is not shaped like that. If the appeal is the slow, guilty version, someone circling a thing they have decided not to do, the setup is built for it. Mila is a Candy character rather than a licensed performer likeness, so the look is designed for the role.
The free episodes, and whether to pay for the rest
Two free episodes is the house standard, but the ratio here is not. On a five-part series, free gets you nearly half the run; here it gets you a fifth. You are judging a ten-episode arc on its opening, and the opening of a slow-burn premise is the part most likely to be all setup and no payoff.
So be blunt about the maths. The paid run here is more than twice what a standard five-part series asks for, and those tokens sit on top of a subscription rather than instead of one, worth checking what tokens actually cost before you start. My test would be simple: if the two free episodes feel static rather than escalating, do not pay in. One tag has to carry ten episodes, and nothing in the listing suggests a second hook arrives later.
Where it sits among similar series
It is tagged Taboo and nothing else. Candy Shorts publishes tags, not ratings, so that single word is your whole guide to what the explicit material covers: there is no secondary kink to fall back on if the central tension stops working. Against the rest of the Candy Shorts catalogue, where most series run five episodes and simply stop, its real differentiator is length rather than content. Whether ten episodes buys a genuine arc or just a longer version of the same beat is not something the listing tells you, and not something I would claim to know.