Harry Potter/ Kobayashi-san chi no maid dragon crossover
Harry discovers a summoning ritual during _ year and uses it, not knowing it would summon a demon.
Fortunately for him, Lucoa the 'ex-goddess' happens to be nearby and takes the demon's place. Finding the boy too cute to leave alone, Lucoa drags him with her to Japan to visit Tohru.
Plenty of sexual activity or at least teasing would happen along the way along with lessons on actual magic from her and a bit from Tohru.
May accept Kobayashi as a sort of mother figure, may even have her related to Lily Evans giving Harry a blood relative that is not the Dursleys giving Dumbledore a good reason to let him stay in Japan.
When year 4 passes/has passed, it could include Gabriele coming to seduce Harry and finding herself battling with Kanna over who is cuter, or even over Harry.
