[He feels it, but he doesn't call him out on it. What he does do instead is to gently tighten his grip around Ichimatsu's legs, just briefly. Just to let him know he's still here and that whatever Ichimatsu is thinking is probably something being way overthought.
And then, the bus arrives.
Karamatsu shifts, looking up at the doors to the side of the bus as the driver opens them, giving the two brothers something of a look in the process. He doesn't get up immediately so it'll be easier to reach into his pocket for some coins to pay the fare. Once they're in hand (uncounted, he can keep the change), Karamatsu lifts both himself and Ichimatsu up off the bench so he can board the bus to the next ward.]
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And then, the bus arrives.
Karamatsu shifts, looking up at the doors to the side of the bus as the driver opens them, giving the two brothers something of a look in the process. He doesn't get up immediately so it'll be easier to reach into his pocket for some coins to pay the fare. Once they're in hand (uncounted, he can keep the change), Karamatsu lifts both himself and Ichimatsu up off the bench so he can board the bus to the next ward.]