Pamped Rebels P10 - Scenario Lily (Pixiv Fanbox)

Lily and her brother enter the hangar, to check out the special weapon she's been working on, to help them traverse the wasteland. Flo knew he could count on his baby girl, but what exactly has she been building down here? Also we learn that she and her sister Nowi aren't on good terms, but they can hopefully put aside their differences, can they?