Tech-Blocked, but My Mecha Is a Hit Across the Stars [Mecha]

After returning to school, Su Qing's biggest goal was to help her younger sister take first place in every shooting competition. If they couldn't afford the best mecha, she'd build one herself. If they couldn't use other people's achievements, she'd develop new technology herself. In short, the mecha had to match her sister's abilities. The entire Osuma Galaxy was in an uproar when Su Ming appeared on the official roster of the shooting team. An unheard-of outsider from a backward galaxy? What gave her the right to take a spot from someone born on their home planet? Rumor had it she'd only started practical mecha training a year ago, and practiced shooting for no more than three hours a day. A supposed insider posted online: The designer for that parachuted-in newcomer is her sister, Su Qing, who used to chase clout. I heard she came up with another attention-grabbing technology. In exchange... Netizens started making up titles: "Bought Her Way onto the Team," "My Mecha Designer Sister and Me," "You Have the Tech, I Have a Sister, and We Both Have a Bright Future." Go after her sister! Go after her sister! Su Ming had always been gentle, paid no mind to rumors, and believed that skill was what mattered most. But for the first time, she got angry. If you go after my sister, I'll show you everything I've got. Su Qing: A cheerful, assertive genius mecha designer and devoted sister-con. Su Ming: A sweet-on-the-outside, dark-on-the-inside, one-in-a-million mecha sharpshooter and devoted sister-con. Neither of them is perfect at the start. They'll grow. A sci-fi mecha setting, and a story about two sisters who depend on each other. The focus is on the plot. It's essentially a dual-female-lead story, and there should be a romance, though not much of one. Theme: Forge a strong heart and soul through adversity