Sure, 'Ariel's First Adventure' is a good one for beginners. It has a simple and straightforward plot that's easy to follow.
I think 'Ariel and the Magical Pet' would be great. It has a lot of charming elements like a cute pet that accompanies Ariel, and the language used is not overly complex, making it accessible for those new to ariel light novels.
For beginners, 'Ariel in the Mysterious Forest' is a fine choice. The story takes place in a single, well - described setting - the forest. There are not too many convoluted sub - plots, and the characters are easy to understand. It gives a good introduction to the world of ariel light novels with its engaging yet uncomplicated story.
A good one for beginners could be 'The Friendly Octopii'. It has a simple and engaging story that is easy to follow. The characters are well - developed and the plot is not overly complicated.
I'm not aware of a huge number of diaper - specific light novels, but 'The Diaper Chronicles' might be a good start. It mainly focuses on the humorous side of dealing with diapers in a family setting. It has short chapters and uses simple language, which is great for beginners. It can give you a taste of how diapers can be incorporated into a light novel's plot in a light - hearted way.
I'd recommend 'No Game No Life'. It's a 'fun light novel' with a really interesting concept. Two siblings who are the best gamers in the real world get transported to a world where everything is decided by games. The characters are engaging and the story is full of twists and turns that make it very enjoyable for new readers of light novels.
The 'Overlord' light novel is also a good choice. It tells the story of a powerful gamer who gets trapped in a game world. The world - building is excellent and the story has elements of strategy, action, and some dark humor, which can be appealing to those new to itseki light novels.
I would recommend 'Babylon: City of Wonders'. It has a relatively straightforward plot that is easy for beginners to follow. It gives a good introduction to the Babylonian - inspired setting and the types of characters you might encounter in other Babylon light novels.
A good one for beginners is 'Spark of Magic'. It starts with a relatable protagonist who discovers their magical abilities. The story progresses at a steady pace, introducing the magical elements of the lilliane light novel world gradually, so new readers can easily get into it.
One that could be good for beginners is 'Horizon: The First Adventure'. It has a relatively straightforward plot that's easy to follow and introduces the basic concepts of the Horizon light novel world.
I would recommend 'My Hero Academia: School Briefs'. It's a great starting point if you want to get into Bakugou - related light novels. It gives a good introduction to the characters and the world, and Bakugou's character is well - represented with his typical fiery personality.
I'd recommend 'So I'm a Spider, So What?'. It has a unique take on the summoning and reincarnation theme. The story is engaging and easy to follow, which makes it great for beginners in the light novel world.
I would recommend 'The Rising of the Shield Hero'. The protagonist, Naofumi, is treated unfairly at the start and kind of becomes a rascal in his own way. He has to fight against the odds and the people who wronged him. It's a great light novel with an interesting story that's easy for beginners to get into. There are elements of adventure, strategy, and character growth that make it appealing.