Can the Pawn kill the King?(Pōn wa ō o korosu koto ga dekimasu ka?)

In a world where everyone is born with some sort of differnce in Gene's everyone is born with what is called a shogai an ability. You will never get another ability. Our protagonist Taka's shogai is to never age past the point he can reproduce and he is going to save those with weak shogai from Vill the antagonist who's ready to kill everybody he deems weak.