Haru's just there because by chance, the condom broke. Maybe.So now we have the answer to the mystery of 'why only one kid?'
They're still early in their career. Give them time.So now we have the answer to the mystery of 'why only one kid?'
Dad knows how to use protection, unlike grandpaSo now we have the answer to the mystery of 'why only one kid?'
Night battles must've been wild and longer before Haru's birth, when given the chances
(and probably even after Haru's birth, Kuru trying her bet at every chances every now and then, maybe)
Kuru-mama still wants to realize her goal of having as much children that'd make up at least a full team
(who knows if that even includes substitutes as well)
Haru's gonna be the "manager" position, whether she wants to or not