@Kyrieo It's a demon summoned by Rimuru to inhabit the golem puppet. Rimura gave it to Ramiris as a servant in exchange for allowing the group of isekai children summon spirits at her place.
@Greyvenn It's a little confusing, yes, but basically what's explained here is that due to Iino's stage fright, the results of the audience laughing at her would have happened anyway. Ishigami wants Shirogane to win by a landslide so that Iino's poor performance wouldn't become a main topic of...