did sera purposely make it looks like she couldn't solve the case?

It looked like it and then the "is right here okay?" when Shinichi was on the phone.

Probably

That sera look alike akai shuichi

did you really guess, or did you look her up first? she's Akai's little sister.

They are very similar and I guessed it because of the eyes

You got it right

Y'know what's wild? I just looked up Sera's VA Noriko Hidaka - she's Kikyo...
Y'all, Shinichi (Kappei Yamaguchi) is Inuyasha, lol

No wonder he appeared in one of the episodes in Inuyasha

she's also the 'Narrator' for Komi-san, u know the one... lady who's always saying, "communication disorder..." and so on during the beginning parts of the episodes.

Also does near from death note which shocked me

Looks like sera wants to know some truth nd she have a feeling or she surely believes that conan is shinichi

Yeah I know

sera is acting sksksks