The good harem anime recommendations are as follows: 1 " Forbidden Magic Book Catalog ": The male protagonist, Tama Sujo, is a high school student with the title of " Fantasy Killer ". His ability can destroy all items of the Demoness Sect. 2 " Battle of the Date ": The male lead, Shinji Shikri, is a high school student who has the ability to control time. He gradually gained his feelings through dating the female lead, Mikoto Misumi. 3." World Acceleration ": The male lead, Kuromu Kaito, was a high school student with the ability of " Time Decelerator." He gradually gained his feelings through his relationship with the female lead, Hyakume Kisu Shizuo. 4." Science's Super Electromagnetic Gun ": The male lead, Misaka Mikoto, was a young girl with the ability of " Super Electromagnetic Gun ". She gradually gained her own feelings through communication with the male lead, Shirai Kuroko. 5. Sword Art Online: The male lead, Kirito, is a high school student who has the ability to play the game "SAO". He gradually gained his feelings through his relationship with the female lead, Asuna.