Maou-sama no Machizukuri! ~Saikyou no Dungeon wa Kindai Toshi~ - Vol. 6 Ch. 35 - Promise with [Time] Demon Lord

[MangaDex]

 

[JustAU-]

So is Sirius his sister? How does that work if Marco and His medals made them her parent and his medal was also used

Also is the Time DL immune to the lifespan problem? He said "prolong her lifespan as I did to my own"