He isekais before the tropes of Isekai are established (1970/80s I think), so they go completely over his head. So, for example, when the tsundere elf denies liking him, he takes it at face value and leaves rather then stay in what he believes to be hostile company.
There’s not much I miss about Reddit, but one of those things is a proper community to put jokes that have been run into the ground. The unnecessary arrow is one thing, but then the second reaction image really kill the otherwise mildly amusing joke.