It usually means “Master”

Japan's senpai and kohai system. ... Although there is no exact translation into English, senpai (先輩) means an upperclassman, senior employee or other older person with whom you have dealings. Conversely, kohai (後輩) is the junior or lower person. But in Yandere Sim it means your on and only crush

Wat?

Yeah

D o u k n o w a t s e n p a I m e a n s ?