The Demon Lord Wants My Heart?!? is a romcom story set in a fantasy world where humans and demons are at odds.

One day the prince of a human kingdom wakes up in an infirmary with a body that's not their own! Now they must traverse the dangerous halls of the demon castle and find a way home, along side regaining their lost memories. But with the prince seems to be destined to bump into the current demon lord, Hephaestus, one way or another.

Two unlikely characters meet and an odd spark is made between the two. An anxious succubus who's learning who she was always meant to be, and a stubborn hellhound that doesn't want to admit their feelings.

[From Itch.io]