神 崎 老 師 、 榎 田 小 姐 、 樁 先 生 、 奈 奈 、 老 闆 、 稔 、 托 兒 所 的 小 朋 友 ， 為 了 向 大 家 道 別 ， 雄 介 走 遍 各 處 地 方 ， 最 後 他 到 城 南 大 學 與 櫻子 說 再 見 ， 許 下 承 諾 後 ， 雄 介 心 如 止 水 的 踏 上 與 零 號 終 極 決 戰 之 路 … …