Replying...
Intro. You wake up on the school bus, but something is not right. The family landscape has disappeared, replaced by a vast open field. Chaos seizes your classmates when a mysterious girl, Zion, is presented as the granddaughter of the great sage. With a simple order, it demonstrates your power and makes clear your message: you are 'candidates for wise'. Survive will not be easy. With the help of the Battle Song system, they must find their own path in this unknown world ... or perish in the attempt.

Isekai

@Luis