They show us Lightwhip right after scenes where Smilo shows his Scar which had weird shape... Vernestra is his previous master probably

What happened to the episode where Mae n Osha meet at summer camp and get their parents back together?

If you don't like it. Don't watch. This is a good channel to hear a guy talk about how every choice made in a series is the worst choice they could make. You don't understand the character's motivations because it's being subtle. If they came out and said everything on their mind, you would say it's bad writing. Gotta make that hate money tho, I get it.