I remember someone posting that the next arc involves him working on his guild that he literally doesn't really care about. Then afterwards he does a far off S rank dungeon raid while another dungeon opens up where his sister's school is at and he can't get to her because of his shadow exchange is on cool down. That sound about right?
Also, I was curious about a couple of things since I haven't read the WN.
1) Does he ever use the same medicine he used on his mom to help that one guy's dad - the one from the earlier chapters who had that guild leader test - who is about to enter the eternal sleep disease?
2) Besides the other system cheat people who are out there and are a part of the deeper background story that comes up later on, can other normal hunters learn/gain Sung's ability to level up? I mean I know someone did say his future son does, but what about the other Korean S rank hunters? Like can he do something where if they join his guild or if he forms a contract with them through his system summoning magic could they maybe also gain that ability? It would kind of be nice to have other non-summoned allies who could help him and not have him be the only OP one in the story for whenever the final battle thing happens but somehow I find that seriously doubtful.
3) Does he ever tell his mom he's an S rank?
4) For the final confrontation with that one psycho USA/Korean S rank hunter who wants him dead because of his dead brother, what exactly happens during that part? I asked this before and no one said anything beyond that it eventually happens and that the bad guy will deeply regret it. But I want details beyond that!
And thank you for all help regarding my questions! Remember I put them behind spoiler tags because I want detailed spoiler information! >:3