One popular title could be 'Clannad'. It has elements of osananajimi relationships. The story involves characters who have known each other from a young age and their relationships develop in complex and heartwarming ways throughout the game.
It's a type of visual novel often centered around the concept of childhood friends. Usually, it tells a story where the relationship between characters who were friends since childhood develops in various ways, such as into a romantic relationship or a complex friendship with new challenges.
The Dungeon Meshi anime typically ends at a specific point in the manga storyline. However, it might vary depending on the adaptation decisions made by the producers.
For novels where the protagonist could enter the anime dungeon, the following example could be used:
"Battle Through the Heavens" was a web novel where the main character, Xiao Yan, accidentally obtained the ability to enter an anime instance dungeon while training. He constantly improved his strength by entering different anime dungeons and engaged in fierce battles with other characters.
The main character of " Full Time Expert " was Yu Wenzhou, a retired professional player who accidentally obtained the ability to enter an anime dungeon while playing a game. He showed his skills and wisdom by entering different anime dungeons and fought fiercely with other characters.
" Ghost Blows Out the Light " was an online literary novel where the main character, Huhai, accidentally obtained the ability to enter an anime dungeon while cultivating. He entered different anime dungeons to collect various treasures and fought fiercely with other characters, eventually becoming a legendary figure.
Since I don't have first - hand knowledge of 'osananajimi ni najimitai light novel', it's hard to say precisely. However, 'osananajimi' means childhood friend and 'najimitai' can be translated as 'want to become familiar with'. So it may tell a story of a character who wants to become more intimate with their childhood friend, maybe through shared experiences, adventures or just spending more time together in their daily lives. There could be obstacles in the way, like misunderstandings or the intrusion of other characters.
Well, one special thing could be its plot. Maybe it has a unique take on the relationship between childhood friends. It might explore the idea of not wanting to change that relationship in a really interesting way.
One possible theme could be friendship, given the mention of 'osananajimi' which means childhood friends. Another theme might be nature, as 'takane no hana' refers to a flower on a high place.
The 'takane no hana to osananajimi visual novel' could potentially be a story centered around a flower on a high peak ('takane no hana') and childhood friends ('osananajimi'). Maybe the flower has some sort of symbolic meaning related to their friendship. It could be a story of how their relationship evolves over time, with the flower being a constant reminder of their shared past or a goal they are both striving towards.
All I know is that it's a light novel. It might have themes of friendship, loyalty, and perhaps some kind of internal or external conflict related to the concept of not wanting to change the relationship between childhood friends.
One special thing could be its unique character relationships. In many light novels, the relationships between the main character, his girlfriend and his childhood friend often create complex and interesting storylines.