>>37158829Roberu and Astel, definitely.
I really think those two are the reason why suntempo doesn't really do anything together, though they both have expressed mild envy over uproar, tempus or even mafia having good in-gen relationships. If it wasn't for Temma i don't think suntempo would still even be a thing.
There's this kind of tense atmosphere with two of them, not a strong one but it's there. Rikka described their relationship as "rivalry" in wachastars and oga has offhandedly mentioned that looking at suntempo you always wonder if these guys actually even get along. Also Astel when talking about what holostars are like when they are really angry said without hesitation that roberu just gets very quiet. Makes me think he's gotten Roberu angry few times before. He didn't know what all of them were like when angry.
But it's cute how both of them really like Temma.