That's kinda sad, I was thinking the younger brother also came back with the MC, but he didn't, where could he be? I really thought they'll be reunited and can rewrite their future together. Well, the story isn't done yet, so I'm looking forward for the upcoming updates.
• Do note the mc and ml aren't related by blood. Just telling, others might misunderstand.
The Way My Younger Brother Looks At Me Is Becoming More And More Sinister