For what I understand, the first meeting was with child mammon after Gabriel made a deal with Metathron. He lied to him and was called ga ga as a result, mammon wouldn't have found out his real name if he didnt go to heaven as a snake i suppose. And there seems to be multiple time skips in between and there is a hidden plot, too. So currently mammon has him captive with his powered sealed. What i am curious about is how did lilith created mammon with Metathron's spirit and powers. ヾ(☆▽☆)
For what I understand, the first meeting was with child mammon after Gabriel made a deal with Metathron. He lied to him and was called ga ga as a result, mammon wouldn't have found out his real name if he didnt go to heaven as a snake i suppose. And there seems to be multiple time skips in between and there is a hidden plot, too. So currently mammon has him captive with his powered sealed. What i am curious about is how did lilith created mammon with Metathron's spirit and powers. ヾ(☆▽☆)