It's worth noting that she and Hōtarō are based on Sherlock and Mycroft Holmes with interchanged traits. Hōtarō almost never does any mystery solving despite having the gift to, until he met Chitanda, Eru; A trait akin to Mycroft. Meanwhile, Tomoe is implied to have the same gift but is more adventurous than lazy, similar to Sherlock. The two traits aside, Sherlock was also not without any knowledge of martial arts or self-defense like Tomoe. Oddly though, Hōtarō is the one who has a sidekick and the level of deductive reasoning is flipped between the siblings, with Tomoe having Mycroft's level of intellect and Hōtarō of Sherlock's. Possibly a play in references as Sherlock Holmes is also referenced a number of times within the whole series.