Roland isn't able to stop his smile from growing, warming up to Senku's almost innocent question.

"Because you're a great help to the train, and a good person to everyone else. You care. I know that's not something you go doing for gratitude, but it's nice to hear once in a while for most people." Everyone needs a pat on the back, even if Roland has to spell it out for him. He chuckles.

"Guess you and I are gonna need to pick up some small talk lessons again, eh? Whaddya say? I can make it part two of my gift for your birthday. On the house."