Can you recommend some popular Japanese harem light novels?

Sure. 'Sword Art Online' is a very popular one. It has an interesting story set in a virtual reality game world where the players are trapped and have to fight for their survival. Another great one is 'Re:Zero - Starting Life in Another World'. The main character has the ability to return by death, which makes the plot full of twists and turns.

Sure. 'Sword Art Online' is a very popular one. It has an exciting story set in a virtual reality world where players are trapped and have to fight to survive. Another great one is 'Re:Zero − Starting Life in Another World'. The main character has the ability to return by death, which makes for a very engaging and complex plot.

Sure. 'Sword Art Online' is very popular. It's about a virtual reality MMORPG where players get trapped and have to fight for their lives. Another one is 'Re:Zero − Starting Life in Another World', which has an interesting concept of the main character dying and restarting from a certain point every time he fails. 'Overlord' is also great. It tells the story of a powerful wizard who gets trapped in a game world and starts to build his own empire there.

Definitely. 'KonoSuba: God's Blessing on This Wonderful World!' is a hilarious light novel. It tells the story of Kazuma, who is reincarnated in a fantasy world but with a rather useless goddess as his companion. 'No Game No Life' is also popular, with the sibling duo Sora and Shiro challenging different games in a world ruled by games. 'Date A Live' is about a boy who has to date spirits to save the world.

Definitely. 'Rascal Does Not Dream of Bunny Girl Senpai' is quite popular. It has a unique blend of slice - of - life and supernatural elements. The story revolves around Sakuta Azusagawa and his encounters with various girls with 'adolescence syndrome'. 'Food Wars! Shokugeki no Soma' is also very popular. It's set in a culinary school where students compete in cooking battles. The detailed descriptions of food and the intense cooking competitions make it a great read. And 'Black Bullet' is a popular light novel with a post - apocalyptic setting, where humans fight against cursed children and the Gastrea.

'Overlord' is also popular. It tells the story of a powerful wizard who gets trapped in a game world where he is now an all - powerful overlord. The story delves into his attempts to rule this new world and the various challenges and characters he encounters along the way.

Well, 'Kono Subarashii Sekai ni Shukufuku wo!' is a must - read in Konosuba Japanese light novels. The world - building is quite fascinating. It shows a different kind of fantasy world compared to traditional ones. The characters' growth throughout the story, especially Kazuma's attempts to deal with his party members' quirks while also trying to make a name for himself in this new world, is really interesting.

One of the well - known Japanese anime light novels is 'Overlord'. It features a powerful villain - like main character who is an undead overlord ruling in a new world. The world - building in this light novel is really detailed. Also, 'No Game No Life' is quite popular. It's about two siblings who are transported to a world where everything is decided by games, and they use their gaming skills to rise to the top.

Sure. 'Date A Live' is a well - known Japanese harem novel. The plot revolves around Shido Itsuka, who has to go on dates with a group of girls called Spirits to prevent them from causing destruction. These harem novels often have a male protagonist in the center, with multiple female characters having different relationships with him.

Some good reverse harem light novels are 'Amnesia'. In this novel, the female lead has lost her memory and is surrounded by a group of men who seem to have a connection to her past. 'Yona of the Dawn' can also be considered in a way, as Yona has a group of loyal male companions on her journey. Additionally, 'Hakuoki' is a reverse harem set in a historical Japanese setting with samurai - like male characters.