-adopt a girl!! because oikawa wanted a princess

-iwaizumi objected at first but went along with it anyway, because whenever oikawa mentioned it his eyes lit up really brightly and he couldn't resist

-oikawa spent weeks secretly looking up things about how to take care of girls, and when iwaizumi found out, well, he decided he'd be fine with it officially

-iwaizumi being really scared about handling a girl because OH NO F EMALES,, I AM A MANLY M AN

-when iwaizumi holds her for the first time he falls in love with how tiny she is compared to anything else he's ever seen, and he's almost scared to hold her because she looks so fragile

-oikawa doting over her

-oikawa's favourite thing is holding his daughter or seeing her with iwaizumi

-"but iwa-chan, this onesie is so cute" "oikawa no star wars, we agreed on this" "mean!"

-oikawa talking to her about aliens when he thinks iwachan is out and iwaizumi is l i v i d

-as she grows up oikawa does most everything with her even though he works more, and iwaizumi worries that he's inadequate compared to oikawa, but naturally she ends up asking for iwaizumi and he just cries and cries and shes like "daD RU OK"

-she joins a gymnastics club and oikawa is that embarrassing parent

-oikawa's the one who does her hair but iwaizumi usually brushes it in the evening so they have some bonding time

-both of them going out of their way to spoil their princess, but they're both so caring she learns to be humble naturally, never expecting too much

-"iwa-chan's being mean" "but dad, aren't you also iwa-chan?" *oikawa screeches*

-iwaizumi is protective and will screen u like a detective if needed , like no joke

-oikawa "iwa-chan, let her have some fun~~" "NO FUN IN MY HOUSEHOLD"

-iwaizumi's only weaknesses: his little girl, his husband and godzilla