In M19, Haibara was confronted regarding her feelings for Conan (due to being caught staring fondly at him), and started blushing.In File 423, Haibara wasn’t acting thankful for Ran’s service, and when Conan assumed that it was because she didn’t like obliging types like Ran, she thought to herself “you don’t get it… well it’s not like I want you to get it” (most likely referring to her romantic rivalry with Ran).
- In File 417, Yukiko pointed out how Haibara was clearly in love with him for staring at him 10 times since she met up with them.
- In File 331, she was “running away” from Ran (just like in File 251), because of her insecurity of feeling on par with her (especially in Conan’s eyes).
- In File 261, Conan was getting frustrated over not confessing to Ran in time, and right after, when Haibara entered Agasa’s car, she was humming and was in a good mood because of it.
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In File 258, after putting a lot of work into creating a prototype antidote and helping Shinichi with covering his tracks and posing as Conan so that he can protect his secret from Ran, she was caught off-guard when Shinichi asked “Why are you doing all of this?”, as if her true feelings were getting exposed.In File 231, Conan and Haibara was acting a scene for school arts festival, and their dialogue was as if it was paralleling what was actually happening in reality, where the love interest figured out “Masked Yaiba’s” identity (just like how Ran figured out Conan’s) and which also included a “female spy from an evil organization” confessing her secret feelings for “masked yaiba” (which further highlights Haibara’s romantic feelings for Conan).In File 201, Ayumi picked up on Haibara’s attention to Conan and asked if she liked him, to which Haibara teased her and said “What if I did?” (before reassuring her so that she doesn’t trouble her).In File 191, she said that she was 18 and “joked” that she fits perfectly for him.She always alluded to it and it was hinted at ever since her intro.