So all I remembered was there was a school trip and then Person A slept in the futon while Person B was drinking and then got drunk then Person B cuddled next to Person A and then their classmates took photo of them snuggling each other!!
Maybe https://www.mangago.zone/read-manga/hosik_s_story/uu/iur_chapter-46/pg-1/ ?
thxx but sadly this is not it
So all I remembered was there was a school trip and then Person A slept in the futon while Person B was drinking and then got drunk then Person B cuddled next to Person A and then their classmates took photo of them snuggling each other!!