It's a yaoi Manga. So I think both of them are also robot or not human. In first chp the Mc ( don't remember whether he was the ukr or seme ,) along with someone made him into robot ( the robot has no memory) but later the owner feels bad or something and tries to kill himself in the sea etc etc ( goodness I really don't remember) AT LAST we know that the Mc was also not human. ☆ ps : the Mc turn him into robot but actually before that, the robot ( who was then human) made the Mc into robot . So all along the were not human. In the past they were lovers.
It's a yaoi Manga. So I think both of them are also robot or not human. In first chp the Mc ( don't remember whether he was the ukr or seme ,) along with someone made him into robot ( the robot has no memory) but later the owner feels bad or something and tries to kill himself in the sea etc etc ( goodness I really don't remember) AT LAST we know that the Mc was also not human.
☆ ps : the Mc turn him into robot but actually before that, the robot ( who was then human) made the Mc into robot . So all along the were not human. In the past they were lovers.