Review Detail of Galecto in The Magician of Sound

This one is so-so. Shallow OP MC and even shallower harem. All the girls have been saved by MC at some point and became lovestruck instantly. The world feels empty, almost boring. The overarching concept of life on earth evolving to adapt to a mana rich world has also been done already (check out Everyone Else is a Returnee) so there's not much left to appreciate besides a pinch of RNG tattoo magic at birth and a dash of misguided self-destructive nationalism.