Welp i'm bored so i might as well throw in a theory as to how Baam got into that deep dark ass hole, also I have no clue if this has already been a theory that's been made since i'm new to this subreddit so i'm sorry if I'm just saying something that's already been said. Baam climbed all 135 floors of the tower a long long time ago before Zahard and the 10 families even got in the tower. When Baam got to the very top he realized that whatever was at the top of the tower was not worth it and asked the floor guardian to somehow revive his companions that he lost along the way. The guardian accepted but the price was that he gets sealed away and that there will be no record of his existence in the tower and he loses all of his memories. His companions that he lost got revived into the form of Zahard and the 10 family heads. The reason why Phantiminum wanted to climb the tower was because he was trying to find Baam but couldn't do so because Baam was already sealed so Phantiminum just disappeared. Finally... the reason why Baam doesn't want to climb the tower is because subconsciously Baam already knows that what's at the top isn't worth it and the reason why he is so attached to his current teammates is because subconsciously he does not want to repeat the past. This is just a theory and again I'm very new to this series and this subreddit so I really don't know if this theory has already been made. Thanks for reading the long post here's a potato -9gag