I'm not sure specifically as I haven't read this light novel. But generally, 'koi' means love in Japanese. It might be about a love story that has something to do with twins ('futago'), like perhaps a love triangle involving twins that can't be separated ('warikirenai').
You can try looking for it in some well - known Japanese light novel online stores like BookWalker. They often have a wide range of light novels available, including many Japanese - origin ones.
I'm not entirely sure as I haven't read this specific fan fiction. But generally, the title seems to be related to the feeling of love (koi) being like after the rain (ameagari). It might explore a love story with a mood similar to the freshness or melancholy that often follows rain in a fictional context.
Since it's a light novel, it might tell a fictional story. 'Meido no Koi wa Enma Shidai' could be centered around a maid character. Her love story might be intertwined with the idea of Enma. Enma in Japanese mythology is often associated with the afterlife and judgment. So perhaps in this story, the maid's love is tested by the rules or powers associated with Enma. It could be a story full of drama, with the maid having to navigate through the challenges presented by this Enma - related setting to reach her love.
The 'sekai wa koi ni ochiteiru light novel' might be centered around the concept of love in a world. It could feature a diverse range of characters, from protagonists deeply in love to those who are just beginning to discover the feeling. There may be elements of fantasy or science - fiction blended with the love story. For example, the world in which the story is set could have unique rules or characteristics that influence the way love develops among the characters. It could also explore different types of love, like romantic love, platonic love, or unrequited love.
Well, without having read 'koi wa ameagari no you ni light novel', it's hard to say precisely. However, light novels usually center around a main plot with sub - plots that enrich the story. Given the title, it could be about a love story that unfolds in a post - rain scenario. It might involve characters whose relationship is as delicate and fresh as the air after the rain, and the story could be filled with emotional nuances.
Online platforms are a great place to start. Amazon might have it, both in its international and local versions depending on your region. There are also some specialized Japanese book or anime merchandise websites where you can search for this light novel.
Given the title 'aizai alpha wa koi ni samayou light novel', it seems likely that love is a central theme. Additionally, the idea of 'samayou' which can be translated as wandering or drifting might imply a journey related to love. It could be about the character's exploration of love, perhaps facing different situations and emotions while on this love - related journey.