.Shuukichi sent a message to Shuuichi asking him to protect Yumi although after Akai (as Subaru) shakes off the molesters he thinks she doesn't look like she really needs protection.
. The no-parking sign is the key, Yagi had noticed it and now Conan does as well. The reference to Japan's traffic signals being based off the UK's ones is also a key.
. They were able to retrieve the 7155 number from the phone since Conan is trying to think what it means
. The culprit has kidnapped Naeko and unfortunately found her 2nd phone as Naeko tried contacting Chiba