Responses
As you continue to read the manhwa, you wouldn't have time to think as to who is the male lead because you would be too focus on how great the plot is. But as what was shown, there is a high possibility that Jeffrey is the male lead. All of the disciple's affection towards their master is only master-disciple relationship. Possessiveness of wanting to be the best discple in their master's eyes. Only Jeffrey was shown as a love interest.
I suggest you continue to read the manhwa because the plot is really great.
I want to read this but I first want to know who is the main lead.
Is it Jeffrey?