Shadowsand is a father

The 2 sandyghast I caught in Hyperspace are Sandy and Shade (the same applies to Shadowsand)

As if getting your money loaned to team MZ's leader wasn't enough, Now her boyfriend is loaning more for his coffee shop in the same hotel they're advertising.

Lime: Me

Pink: Taunie

Purple: Corbeau

Blue: lida

I don't know how to get down to this side quest, can anyone help?