Shinichi questions Sara why did Tago Yudai become Yoshimoto Koya. Yudai once told her that he does not want to repeat Souta's tragedy and wants help others like Souta to live strong. He learned that he can't stop all evil intentions in the world, but he can bring up people who can fight against evil intentions. That's why he became Yoshimoto. Not only that he prevented Shigeyuki from being the second Souta, but he also wanted to prevent Shinichi from turning into a monster like Yoshimoto. Sara gave him Yudai's notebook which has written notes about the Numata family.
「呼ばれてないのにジャジャジャジャーン!」と帰ってきた吉本(櫻井翔)。
その時、沼田家ではちょうど母・佳代子(鈴木保奈美)が夫・一茂(板尾創路)ら家族に向かって離婚の意思を伝えていたところだった。