serafuku 30 school_uniform 22 original 21 1girl 16 solo 16 short_hair 12 skirt 11 highres 10 black_hair 10 sky 6 weapon 5 sword 5 scenery 5 long_hair 5 brown_hair 4 cloud 4 smile 3 potted_plant 3 blonde_hair 3 crossover 3 standing 3 feet 3 tree 3 barefoot 3 katana 3