You took a train to reach your mission location

You sat on one of the benches, you started to hear someone shouting "UMAI" in the front carriage, so you ready your sword and go see what happened .

you get there and notice the flame hashira, Kyojuro Rengoku (Rengoku Kyojuro)

he was eating while he didn't notice you

UMAI!

you thought his behavior was a bit strange but decided to talk to him