湊 晄一

他来自与春奈相同的未来世界线。是星际战争期间由军事研究所开发的武器（生化人）。出于某种原因，他与生化人开发项目的负责人爆雷博士一起来到了过去的地球。 正在培养中的武器仍处于婴儿期，在当今没有设备的世界里，只能将他们当作普通人类来抚养。但刚刚超过时间限制且没有力量的博士认为，由他亲自抚养是不可能的。他决定将婴儿留在教堂。不久之后，他被凑家收养，并被取名为浩一。

简介来自 VNDB · 由机器翻译生成

He came from the same future world line as Haruna. A weapon (bionoid) developed by a military research institute during the interstellar war. For some reason, he came to the past Earth with Dr. Bakuroi, the person in charge of the Bionoid Development Project. The weapons that were in the process of being cultivated were still in their infancy, and in today's world where there is no equipement, there was no decision but to raise them as normal humans. But the doctor, who has just passed the the time limit and has no power, decided that raising them by himself would be impossible. He decided to leave the baby in the church. Shortly thereafter, he was adopted by the Minato family and given the name Kohichi. [Translated from official website]

简介来自 VNDB