Combine olive oil, soy sauce, honey, minced garlic, ground ginger, and fresh ground pepper in a large Ziploc bag. Season with a pinch of salt and pepper. Add the chicken thighs and give them a good toss to coat evenly. Let the chicken marinate in the fridge for at least 30 minutes, or up to 24 hours if you've got the time.
Place the marinated chicken thighs skin-side up in a baking dish, letting the marinade join the party. Bake in your preheated oven for 25 minutes, then flip the chicken to skin-side down and bake for another 10 minutes. Flip once more to skin-side up and bake for a final 10 minutes to get that skin irresistibly crispy. The chicken is done when it reaches an internal temperature of 165°F.