UniteUp! -Uni:Birth-

PROTOSTAR finally breaks through with a CD debut and a big win that makes their daily idol life feel like it is finally moving in the right direction. Then the agency drops a new challenge that flips confidence into pressure. A head to head «release battle» is announced, and PROTOSTAR has to compete by putting out new music against labelmates LEGIT and JAXX/JAXX. The rivalry is not just about charts or bragging rights, because it forces each group to decide what kind of act they want to be, what they can promise fans, and what they can rely on inside their own trio. As schedules tighten and expectations rise, small disagreements hit harder, and the only way forward is to rebuild trust in the middle of rehearsals, planning, and live stages that do not wait for anyone to be ready.