Can you recommend some other novels similar to Majikoi Adult Novel without adult content?

Another option could be some of the fanfiction based on the 'Harry Potter' series that focuses on the humorous side of the wizarding world. There are stories that play with the magical elements in a fun and comical way, without any adult - related content. These can be found on various fanfiction websites dedicated to the 'Harry Potter' fandom.

There are many works of fanfiction out there. For example, if 'big poppa' was in a crime - related context, you could look at some of the Sherlock Holmes fanfictions which are full of mystery and interesting character interactions. They are clean and suitable for a wide range of audiences.

Another one could be 'Anne of Green Gables'. It follows the adventures and growth of an orphan girl. The story is filled with her dreams, friendships, and how she overcomes difficulties in a new environment. It has a very positive and heartwarming tone.

Sure. 'Amnesia: Memories' is a great visual novel. It has an interesting plot where the protagonist has lost her memory and has to navigate through different story routes with various male characters. The art style is appealing, and the relationships are well - developed.

The 'Harry Potter' series could also be a good choice. It has a detailed and fascinating wizarding world. The story follows Harry and his friends as they battle against the dark forces. There are mysteries, friendships, and lots of exciting plot twists. It doesn't have any adult content but still manages to keep readers hooked with its well - crafted storylines.

One could be 'The Wife's Adventure at the Old - Fashioned Theater'. In this story, a wife goes to a theater that shows classic plays. She discovers a new love for the theater arts, meets interesting people there, and it changes her perspective on life and culture.

There's also 'The Orchardist'. It's set in an orchard, which is related to a garden in a way. It tells a story of a man's life in relation to the orchard and the people who come into his life. It's a character - driven novel that doesn't involve any adult - themed stories.

One of the main themes is friendship. The characters in the novel form strong bonds with each other, support one another through various challenges. Another theme is loyalty. They stay true to their friends and their causes. For example, they might stand up for a friend who is being bullied or unjustly treated.

There is also 'Julie of the Wolves' which is a story about a young Eskimo girl who is befriended by a wolf pack. It's a beautiful story about survival, friendship, and the natural world, and is far from any inappropriate content.

Also, 'To Kill a Mockingbird' by Harper Lee is an excellent choice. It deals with themes of racial inequality, justice, and the loss of innocence through the eyes of a young girl. It's a very profound and meaningful novel.