The whole class transmigrated, and I'm the only guy.

Synopsis

A college student and a group of campus beauties transmigrate to an ancient tribe. Selected by a system, the student becomes the tribal chief and the sole source of fire. Each beauty is assigned a specific profession to help develop the tribe and defend against invading tribes. However, to obtain resources and upgrade tribal functions, the number of lottery chances is earned through sex with the chief. Watch as the campus goddesses nominate a "devotee" every day to engage in shameful sex with the chief in front of everyone; later episodes will likely feature group sex...