Warm fuzzy

Deep in a cave lies a demon trapped in ice who will eat any human who dares enter. The demon, Blood, waits for the human who will cry the purest tears, for the gem formed from those tears will break the spell that binds him. Then one day, a young man named Ishuca appears in the cave - and knowing that his weak heart will not last long, he has come to die. Touched by Ishuca's gentle nature, Blood gradually begins to change from the cruel, ice-cold demon he once was

About mc wants to met the girl he met in a game that turn out to be a dude. This dude is the popular guy in college but shy to bot. There are misunderstandig at the beginning who thia dude love, but at the end he reveal he love mc character and mc himself

In a world that’s heading towards its end, Shirou, a scientist whose sole purpose in life is to create butterflies that can purify the world, encountered a male humanoid named Kuroe. What is Kuroe’s real identity? Why does he proclaim on wanting to meet Shirou?
This is an eternal love story that was born at the end of the world