Not really anything to do with Future Abilities but I think that Jee-Han should raise all his skills to at least level 5. Except for Fool's Act and Dish Washing. Even if he is more focused on his long range mana skills, but having his close combat abilities around level 5 would be beneficial with the synergy bonuses they can receive.
Think about it. Sword Mastery, Chunbu Sword Technique, Power Strike, Chunbu Foot Technique, and Chunbu Breathing Technique all at least at level 5. The Sword skills are very synergistic, combined with Power Strike, and further enhanced by the remaining Chunbu techniques when they are activated. Those bonuses would stack up nicely. Really well. Jee-Han has proven that with an hour or two of hard work he can raise a skill to level 5 fairly easily. It would give him more combat options I think.
Are you kiding? Fool's act is a great skill, embarrassing yes, but great. it's a ranged skill that targets multiple opponents and makes them confused. untill he can make bind multitarget, Fool's act should be among his core skills.
atleast from a powergamer perspective, and when your life is on the line, you don't have the luxury of playing any other way until you are highlevel.
and Dishwashing is also a great skill to lv up, since it freeing up time to train other skills, but yeah, it can wait