[Maka Fushigi] The big olympian family [Higeteca]

A boy hauling a baseball bat walks in on his bearded father 'still at it' and barely flinches—just another evening in a household where the old man works through his daughters, brothers claim their sisters from behind, and the girls grumble about waiting their turn. A family chart lays out the loophole driving it all: twin parents on both sides make every cousin a practically-sibling, so the clan shrugs at swinging, marriage math, and helping yourself to someone's little sister. Between an interrupted shower behind a slammed 'in use' sign, a sister fuming that she wanted first turn with the girl in the spray, and a guest wandering in on siblings mid-act, this sprawling brood earns its Olympian title—everyone's related, and everyone's playing.