There were many Harem campus battle animes with strong male protagonists that could be referred to as follows: 1 Sword Art Online: The protagonist Kirito is a gamer who befriended many female characters in the game and established a harem. In the harem, he fought fiercely with other characters. [2]" Attack of the Giants ": The protagonist, Allen, is a giant hunter. He fights with many female characters in the harem, including some giant girls. 3 " Battle of the Date ": The protagonist, Juka, is a young girl who fights with many male characters on a date, including some female combat characters. 4. Index of Forbidden Magic Books: The protagonist, Tama Sujo, is a high school student who makes friends with many female characters in the harem and fights fiercely with other mages. 5. Tokyo Ghoul: The protagonist, Kimki Ken, is a high school student who fights with many female characters in the harem, including ghouls and human characters. The above are some harem campus battle anime with strong male leads. I hope you can help.