Amano is a little bit of a wimp. But that's fine; his nervousness in the face of having to kill is perfectly normal and serves as a great comparison toward Gasai's willingness to go in axe-first.
Death Games are fucked up. It's worth acknowledging that.
Special shoutout for Akise's gay infatuation with Amano. Special anti-shoutout to the way they played it coy for the whole show up until the kiss, leaving people who are allergic to get romance to justify it to themselves by pretending he only did it to drive Gasai over the edge.