>>7450134They fit well together.
Somewhat similar to Gurame: They're not a "straight man - funny man" routine, and more like a "2 funny men constantly riling each other up" one.
Suisei especially can be aggressive when it comes to banter (See: her collab with poor Aqua), but Miko can take it just fine and hits back with force.
And they both know this. Hence why they tend to collab on games in open world games like GTA & Minecraft, allowing them to mess stuffs up.