Idea 4: Spider-Man x Little Witch Academia
The ancient spider spirit Arachnos was one of the most powerful magical lords in existence until magic had been mostly replaced by technology and he feared his powers would die out too until one day he met a young boy named Jaden Cooper. Using the last of his energy he bit him sending all his powers into Jaden. Upon learning about his new powers, Jaden tries to use them for his own gain but leads to the loss of someone close to him. After learning that with great power comes great responsibility Jaden manages to get a job at Luna Nova Magical Academy where he befriends the students learning and learns to master his powers in secrets by day but when more dangers begin popping up Jaden must put on a mask and stop these dangers both magical and technological as Spider-Man.
Rated: T or M (depending on the direction)
Jaden x Harem