Story is pure garbage, has the typical godly skill that is borderline worthless because the author/MC aren't creative. It also seemed to want to be a harem so it introduced a ton of girls but then proceeded to forget they all existed for the past 10 or so chapters while focusing on a single...
@Nukkuva - Depends on how it is made. Aluminum can be combined with other materials to make something just as strong as steel with less than half the weight. Considering this girl miniaturized a nuclear fission reactor I'm not gonna put it past her to find a way to make really strong aluminum...
I know a lot of people hate flashbacks and monologues, but I honestly think we could have used a chapter or two for Shion and Zelbright to establish them in some way. Right now it feels like we skipped some chapters.