セブンの子守唄

Keita has forgotten Seven at the scene of the incident and returned to the headquarters. Seven is picked up by a young girl Keiko and her identity is known. Seven, who she knew she was on her way to her father's office to celebrate her birthday, she was to guide her.

ケイタが事件現場にセブンを忘れて本部に帰ってしまった。セブンは幼い少女ケイコに拾われ、正体を知られてしまう。ケイコは誕生日を祝ってもらうために父親の会社に向かう途中だと知ったセブンは、その道案内をすることになった。