The Young Werewolf Who Hunted in the Four-Million-Year-Old Serpent's Forest KI Manga & Comics
a 23 year old werewolf meeting a snake leviathan age 4,678,908 years old (snake leviathan are the size of the titanaboa when out of human form also very strong and blessed creature they live forever) they start as enemies then become friends then lovers and they save the entire elder forest from humans, fires and other horrible things that could happen to it then the finally retire together with 10 kids and it ends with them all growing up and becoming protectors themselves and continuing tradition of creating forest protectors each new generation they all live in the small village they built and eat together at the bonfire every day for all meals the ending is their children saving a large group of animals and they end up becoming refugees and living with them so they build more houses and their village becomes a small town where everyone lives happily but humans arrive and they have to fight for their home then the humans agree to a deal to leave them alone if they can go through the forest to hunt for food
