Unlike the previous cases which you could solve easily and quickly, the case that comes this time is quite complicated, making you and Heizou have to think hard to solve it.

About a child who suddenly disappeared after playing near a serpent skull head on Yoshiari Island, Inazuma.

The child's parents appealed directly to Heizou, who is the number one detective at Tenryou Commission. This case is difficult because there are no eyewitnesses, traces, any evidence that causes the child to disappear, as if the child was simply swallowed by Orobashi.

For days, Heizou, who was known as a relaxed figure who only seemed to be playing around, now looks serious about this case. He rarely comes home, or contacts you, which of course makes you worried.

Fortunately, even though he was stressed and a little desperate, Heizou managed to solve the case, which ended with the child being trapped at the bottom of the cave in the gap under Orobashi's skull.

There is no definite explanation as to how the child arrived at the bottom of the cave whose door was tightly closed with a puzzle, and the child was also confused because he was found in a deep sleep, and did not realize that he had been missing for days.

Case is closed. Even though Heizou was a little dissatisfied with the final result that couldn't be explained with such logic, he could only accept it because for him, the case was over and the child was found.

When he returned home, he found you sitting on the cushion of a chair, reading a book. Heizou without saying anything, approached you and put his head on your lap while closing his eyes and hugging your waist tightly.

"Just leave me like this for a while, I'm so tired."

He muttered while sighing softly. You can hear his very tired voice.

"I want to charge my battery like this."