Sasha (FMC) : her whole character is basically she's being awkward and clumsy, also, the reason why she decided to kick him out is because she actually also lashed out at him a lot when they're still a party since MC doesn't get stronger (build up stress basically but also Piazolla and Reynold gaslighting her in a way), but she's actually likeable, but just irritating on her relationship with MC with the banishment thing (she actually legit doesn't want MC to die)
Reynold : he's actually nice, but when you read the story, he can be super annoying when he tried to defend their decision also a jerk when it comes to FMC and MC relationship because he likes FMC, otherwise, he's pretty likeable
Piazolla : actually the worst, you won't ever like her, it took until 180+ chapters in the WN that author finally make her to be quite likeable, she's a massive bitch when it comes to MC because she also like FMC, at least in Reynold case, he actually cared about the MC in some way
Robin : the most likeable character in the clan, she's the only one that defended the MC until the end even to the point she almost left the clan to chase MC, she's basically the imouto archetype, she feels guilty tho that she couldn't defended MC more
Tycoon : probably the only character reader will feel neutral with, he's actually join the clan not that long during Hyde banishment, he's also super logical so he doesn't hate MC, in fact, he actually quite likes MC since he's his reading buddy
basically, you will ended up liking only FMC after a while, Robin, and Tycoon
you might like Reynold later on, and definitely not Piazolla unless you read 180+ chapters of the WN or wait until the manga until got to that point which takes years