I think calling 'Hei Bodyguard' Wattpad story is almost missing its appeal, because what makes it click isn't really the tension you'd expect from a 'protector and client' setup. Most of those plots rely on power imbalance or professional distance, but here, the guy's already her bodyguard from the start, right? So the friction comes from them being forced into close quarters where her celebrity lifestyle clashes with his no-nonsense protocol. It's less 'will they cross the line' and more 'how long until his rigid rules crack under her chaotic energy.' The tension isn't in the guarding itself but in the domesticity of it – he has to know her schedule, her favorite food, when she's moody. That familiarity breeds a different kind of spark.
Honestly, after a few chapters, the bodyguard part becomes a backdrop for the will-they-won't-they dance. The real pull is watching this super capable, emotionally closed-off guy get slowly, reluctantly entangled in her world. You see him making exceptions, breaking his own rules for her, and that's where the tension actually lives – in his internal conflict between duty and desire, not in external threats. The plot might bring in paparazzi or a stalker for momentum, but I kept reading for the quiet moments where he'd reluctantly smile at one of her antics. It's predictable in the best Wattpad way, but the execution of that slow thaw is what hooked me.