a) The male lead kissing the unconscious female lead from the get-go b) Putting moves on her (ex. kissing her neck) c) He is in a disguise and forces a kiss on the female lead in which she presume the him to be another person.
So far everything in the story is tame even the partial nudity (hot) scenes. However, I think much much later on in the unyet told part of the story when the female lead is held against her will by the male lead and something happens between the two. This, nonetheless, appears to be a one-time event, which doesn't dismisses that the overall work is still tame.
In general, those stuff are quite common in the time period this work is set in.