Its kinda ridiculous that we know Marcy's past 更多 than Finn's 或者 Jake's past even though this is adv time with Finn and Jake, right?

Well what do we dont know about there past i mean we know that jake 偷了 stuff and finn came from a boom boom leaf the things we want to know is about great 蘑菇 war and marcy and the ice king were from that time period but the only thing we need to know about them is who is finns parent and i mean real parents

Us knowing their past would be considered a big spoiler.

While 你 Are Probably Right,We Do know 更多 about Marcy's and even Ice Kings past than Finn 或者 Jake's past but it could be as 说 Finn & Jake's past could be spoiler.