Why must MC's always be stupid about this? I guess the teenage intrigue would be lost otherwise. Maybe it's a cultural thing, because to me it always looks like cowardly pretense.
MC's going to be none the wiser, right? Wish a manga would address that. That'd be too much change from the formula, I guess?
Maybe it's a culture-shock kind of thing.
@TNT261 You're entirely correct. MC's decisions are stupid and only exist to keep suspense. Merlin would be the ideal informational resource for him, which is supposed to be his entire motivation.