I Like Hotdogs's Manga

A student was living at the rooftop of the school. He met the uke, and told him that he was living at the rooftop. They spend time together. Gradually they had feelings for each other. Then a typhoon came and it ruined his house. The uke's mother saw them kissing. He was dropped out on school. He went alone to Himalayas and found himself dead. The uke got the travel plan that he made. Angst mff