I recommend " Starry Sky in the Rainy Night Only for You ". The male protagonist is the Rain God. He has been silently protecting the female protagonist since high school. The female protagonist actually needs to be protected under her strong appearance. Only the male protagonist sees through everything and silently protects her. Although the male protagonist had been sick since he was young, he still chose to be the guardian of the female protagonist. The whole story was mysterious, depicting the unusual love story between the male and female leads and the adventures in the fantasy world. I hope you like my recommendation. Muah!