Of course, it might not only be visitors to the shop that Conan is keeping an eye on.
As he's always been, Chikusa is a constant presence in the flower shop. From anyone who doesn't know the true him, he's not particularly noticeable. He does his work, and does it quietly, tending to homework and personal projects when the store is empty. Conan's presence is something he casually side eyes, but, well... It's not his business. Ran is who wants him here, after all.
c, after ten years of being forgetful
As he's always been, Chikusa is a constant presence in the flower shop. From anyone who doesn't know the true him, he's not particularly noticeable. He does his work, and does it quietly, tending to homework and personal projects when the store is empty. Conan's presence is something he casually side eyes, but, well... It's not his business. Ran is who wants him here, after all.