12화: 선배와 친구들이 외계 행성에서 수리 부품을 찾다가 신비로운 돔을 발견하다

Marimo and her friends are trapped on an alien planet when their spaceship breaks down. While searching for the rubber band they need to repair their ship's engine, they come across a strange domed structure. When they open the door, they find a shocking surprise waiting for them. (Source: Crunchyroll)

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