So last night, I had a dream of a story, or manga , I know that I never see or read it before, but somehow it appeared on my dream. And it's a pretty vivid enough for me to remember it, -he/she, a pair of friends, going somewhere to a lake or river in a forest. meet with pair of girls (deity or angel or something, 1 accused him/her for peeping because the girls clothes are wet) -somehow kinda magical world -maybe action or somewhat, main chara having flashback of events before final battle, where MC are helped by the deities/angels from the lake/river -MC laters on depicted as becoming a researcher/teacher -MC seems to own a pet rabbit, which maybe have something to do with his research -MC has few students, many of them depicted of doing helpful things (to people in general not the MC, like healing people, discovering medicine etc), one of them become a researcher (and depicted she researched something for a hair growth formula, but the hair growth is from other strand of hair, making it a split end. A comedic one) -Later on, the stories depicted as to progressed years ahead (after the final battle maybe ?), where MC/angels/deiy(depicted as they have grow older, but not that old first thing of the day, checked that their pet rabbit pet has gone died ("ehh, asa-chan has gone" <- mc speak like this iirc), before she go to the mc/deity or angel, that lives together with MC, only to find them has died as well. (both the rabbit and the female lead dies from old ages)(the mc/angels/deity is part of a long living race I presume) I woke up right after that scene, which somehow leaves me hanging, like, you're just a few pages before the end of series and you didn't know what happened. I don't really remember the main character gender, it could be male (by the peeping accident). Does anybody have ever read this kind of story or manga ?