Usage of “senpai questions”

ども、

I was wondering if the usage of "senpai" would still be relevant in these situations:

– Upper classmate you were close to is held back for a year, making you classmates now

– Upper classmate you barely know but have already talked to directly (ie, using "senpai") is now your classmate (same situation)

– What would happen in both cases if the upper classmate is also your sports teammate? As in, referring to them as "senpai" on the field is a given. Would they thus also use senpai in the classroom? Or maybe when it's just the two of them to not "embarrass" the senpai (may not want all ppl to know they were held back)?

Have a nice day:)

by mi0mei