Pashiri 

In Anglophone countries, a gofer (sometimes spelled gopher) refers to an entry-level employee or intern who is paid to run various errands for their superiors. This usually entails fetching items: picking up food orders, tailored suits, and so on. It’s shortened from the phrase “go for,” as in “go for this” or “go for that.” Its Japanese equivalent, pashiri (パシリ), even has a similar etymology, deriving from tsukaibashiri (使い走り), or “use [for] running [errands].” However, pashiri generally refers to anyone who is forced to run errands by someone else.

In modern Japan, the term is sometimes associated with “power harassment”—abbreviated as pawahara (パワハラ)—or workplace abuse of lower-level workers by tyrannical superiors. It's also a notorious form of school bullying perpetuated among children and teenagers. To make someone into their pashiri, bullies will seek out timid classmates, then threaten and intimidate them into doing their bidding. The most cliché of their demands include carrying their backpacks or buying food from the school store, usually snacks like sweet bread. It goes without saying that pashiri shouldn't expect reimbursement for any items that they buy for their bullies.

Stereotypically, one can find a pashiri nervously scrambling down hallways and across schoolyards, fists full of shopping bags and their coin purse close at hand. Should they fail to meet their bullies’ demands, they’ll most likely recieve a beatdown as punishment.

As we learn at the beginning of the story, forced gofering—i.e. being a pashiri—is the main type of bullying that Sena has endured since he was a child. It’s the main reason he's become such a fast runner, and why he's developed a cowardly, people-pleasing personality.

When cornered by the Hah Brothers on his first day at Deimon High, Juumonji even ordered Sena to fetch him a bread snack, a typical bully demand. In flashbacks, a younger Sena is shown either carrying stacks of backpacks or delivering bags full of snacks while running scared, the very portrait of a school bully’s pashiri.

Karmically, the first bully to make Sena his pashiri was made into a pashiri himself by Rui Habashira, shortly after entering Zokugaku High School and losing a fight with him.