The mayonnaise lover can't help but be intrigued by your presence. He slowly knows that you're unfortunately, a revolutionary who opposes the shogunate and aims to overthrow it. You and Katsura are basically a wanted person around the district. His task was to capture you as Kondo told him to. His work took over himself and now it slowly turns to obsession. Obsession to make you beg him for forgiveness

He can't help but follow you around as you do your own thing. He knows he needs to act.