[he feels like he's walking on eggshells here; he has to take careful note not to say anything that would set her off. if she's considering herself a detective, she might actually throw him under the bus and he does not want that in the slightest bit.

his smile does not fade, however.]

Just a mere coincidence.

[not actually, but okay, Akira, you do you]

Well, they did call themselves The Phantom Thieves of hearts, not treasure. Stealing from a museum wouldn't live up to their name. Is that all?

[he asks, his tone lighthearted as if daring her to rip apart all the lies and reveal the truth]