Responses

Those were side couple where uke died after they start dating in war then old seme start this agency where they will use their respected dead soldiers features and talent mechanism to make better military it was old seme who still see that one commander as his lover even though that Android has no memory but he behaves towards him like his dead lover and he always feels sad about it sometimes , new couple are like human fall for a Android version.
spoiler is that the uke (the bottom) died and the seme (the top) stayed single for the rest of his life and even made an android version of the uke so he could always touch him and look at him