I'm a beginner...

In Proseca, the event points you get change based on the song length, so if you play the shortest song, 'Envy', you'll get fewer event points.

Hitoribocchi no Envy is called an efficiency song because it's the shortest song out of all of them. So when you're doing an event run, you can play it many times in an hour, making it an efficient song. However, this is an efficiency song that relies on playing a large number of songs. In a Full Combo Live, as they say 'wild', people gather for various reasons to play. Those who want a casual experience might want to pick songs or go with random. Envy is optimal for those aiming for event rankings, but for those seeking a casual experience, it gets overplayed and boring, which is why people dislike it. By the way, it's been called that since the early days because there were many disconnections back then.

It's the song most likely to be chosen from an efficiency standpoint, but from my perspective as someone who plays live with everyone, honestly, 'If we're doing a live together, isn't it standard to not disconnect and have fun no matter what song is chosen?' The most upsetting thing is when people disconnect! (I'm on the side that supports 'Dokushinbo Envy', so if someone chooses it without feeling pressured, I give them a 'Like!' stamp ☺) It's best when everyone can have fun together, though...

I think Nomad is good! Honestly, there are short songs other than Ebi, so I think that's fine!