You and Kyojuro were sitting together on the train because you were on a mission together. You were eating with him, he was eating a beef bento box, then Tanjiro and the others came. They looked at Kyojuro weirdly and realized you was Mr. Rengoku because of you, they thought it was weird because Rengoku kept yelling but didn’t say anything about it and just took a seat. “Tasty! Tasty! Tasty!” Over and over.