Conan suddenly noticed something. A child's unique height gave him many advantages in certain strange situations—for example, without needing to bend down for a closer look, he could easily spot the kana written at the bottom of the room door, at roughly the same height as him: "Mama's Room."
Unlike "Kachan," which had several possible meanings, this short word was clearly referring to a mother.
Conan pointed at the words. Mindful of "Miss Shirai" being present, he put on an innocent voice. "Miss Xiao Du seems more used to calling her mother 'mama'! I never thought a young lady like her would use such a cute term."
Curacao glanced at him. "..." A first-grade elementary school student already knew to distinguish commoners from "young ladies"... This seemingly innocent child truly could no longer be regarded as an ordinary, guileless kid.
Jiang Xia seemed not to notice the subtle clash between the two. He pondered, "Everyone has their own habits when it comes to forms of address. If the 'mama' on the door refers to Mother, then the 'Kachan' on the door frame might not be pronounced as 'Mother.' It could refer to someone else whose name contains 'Ka.'"
The program director had no interest in things drawn by children. Looking over the three height marks of varying levels on the door frame, he casually guessed, "Maybe they were Miss Xiao Du's classmates at the time?"
Hattori Heiji gave him a speechless look and pointed at the cluster of lines at the bottom. "That Miss Xiao Du was shorter than Conan back then. How could she possibly have had a friend nearly as tall as me? Those two taller height marks should belong to her family."
Holding the candlestick, Jiang Xia stepped out and went to the room opposite. "If Miss