Curious to see where this goes because the wall the MC has hit continues to grow larger. I'm okay if this turns out to be a bittersweet part-drama, part-SoL of MC coming to terms with the reality of the situation, growing up, and moving on. If there's any chance for him, it might have to be when he's much older (and hopefully wiser).
Fortunately still lots of chapters available to read, just commenting my thoughts for now because this chapter hit like--to continue the metaphor--a ton of bricks and I'm not sure if it's going to get better or worse from here on out.
I don't particularly care to see Tasuku and Shia together because it's rather awkward, but I know too well how it's like to have a one-sided crush of someone older, cooler, and seemingly more mature. And that the world doesn't revolve around you and things don't usually just fall into your lap (and if they do, hold onto it carefully). Now I'm the older one, and it's so strange being on the other side...
Oh, and the sister might be my favorite character so far.