Todomomo

Rei: she plays basketball on the boys team
August: robotics team
Twins: don't have one
Eve: Momo drives her to piano classes when she's five.

Kirimina

Akane: good grief she doesn't do shit-
Iro: basketball with Rei. It's fun to watch her gets embarrassed because of the dirty jokes they make about her. (She's fine with them, they're just embarrassing)

Miruhawks

Dove is a good ballerina. She would die to be a prima ballerina-

Iidamei

The robotics team

Kamijirou

Stormi is a cheerleader
Riitsu is on the robotics team

Dabi x Toga

Roman ice skates with Dove. Since she's a good ballerina, she's good at balancing and dancing so he learns from her. And he admires her cute outfits (he's not a big perv but sometimes he looks at her butt 👀)

Nejitama

Amai is a good cheerleader

Phoenix is a good fencer

Mt.Kamui

She's in the anime club

Ryushot

Megami takes martial arts from her dad after school.

Daenerys is in Volleyball

(Gang, why do I think Ryuko carries knives in that pouch on her leg?)

HitoRei

Ice skating with Roman exists

Tetsukendou

Clarith works out

Elliot goes to the Todomomo house to hang out with the twins.

SetSero

Uroko does nothing

Luka plays with Elliot and Todomomo twins

Nami burns herself by accident