 If you liked Seireitsukai no Blade Dance |  ...then you might like Rakudai Kishi no Cavalry |
Both are about a academy with a festival to determine the strongest. The main heroin is fire wilder and is royalty related.
Both of these series take place in an academy and have a red-haired girl as the main character. Lots of females are present in the cast as well. Both of these series also contain "failed" characters. Claire from Blade Dance is a former noble who has had her reputation ruined, and Ikki from Cavalry is an F-rank knight.
report Recommended by Nintendofan204
Red haired tsundere girl with flames and slavery deal etc.(both first episode) If you like Seirei Tsukai no Blade Dance, I recommend this.
report Recommended by Kittynekkochan
he story is set in Areishia Spirit Academy, where girls from noble families are educated to become spirit contractors. A boy named Kamito, a male spirit contractor whose existence Was believed to be impossible, accidentally peeps on a girl named Clair while she was bathing, and forms a contract with the spirit she set her sights on. In order to make up for his mistake, Kamito must become Clair’s contracted spirit.
Both series have a MC that is an Overpowered swordsman, yet in his first appearance appears weak. After that he shows power and starts to get a harem of the various girls from his school. The main female is a fire user. Also, the reason he goes to the school is because he needs to win a tournament.
report Recommended by Silver-King
Similar plot, although Cavalry is less 'harem' than Blade Dance. But there are a female and a male main which goes to magical school and battle.