instrumentality : - meaning:- : the quality or state of being instrumental. 2. : something by which an end is achieved ‐-------------------------------------------------------------------- Denki chimed while slinging his arm around Eijirou, "when we're together, our negative braincells add up and become positive !! negative one plus negative one equals one!!". Eijirou nodded confidently. " negative one plus negative one is negative two" "Exactly" dumb smiles adorned their faces. ---------------------‐------------------------------------------------ (original characters x existing characters) This is a shitpost fanfic (pls don't read this i beg) . I'm writing this for a friend as her birthday gift and learnin experience. you can choose to project as much or as little as you prefer on the original characters.