Often, light novels in the Japanese market touch on cultural themes as well. This might include concepts like respect for elders, which could be related to the 'onii chan' in the title. Additionally, if there are any magical or supernatural elements in the story, themes of good versus evil or the balance of power in such a world could be present.
Well, 'Konosuba' is also a great light novel. It's a comical take on the isekai genre. The characters are all misfits and their adventures in the new world are full of hilarity. These light novels, although different from the one you mentioned, might be something you'd enjoy if you like the general idea of light novels.
Since I don't have much information about this 'Takamine - san' light novel with 'haite kudasai', here's a general tip for finding light novels. You can use search engines and type in keywords like 'Takamine - san light novel' and see what comes up. Also, consider following light novel reviewers on social media platforms as they might be aware of such works.
You can try looking for it on popular e - book platforms like Amazon Kindle or Barnes & Noble Nook. They usually have a wide selection of light novels.
Since I'm not familiar with that particular light novel, it's hard to give an exact similar one. However, if it's a slice - of - life or romantic light novel, you might like 'Toradora!'. It has a great story about relationships and character development. Another option could be 'Kaguya - sama: Love is War' which is also about the relationship between two main characters in a unique and comical way.
A novel that was reborn and nurtured into a one-on-one novel without abuse, mistresses, and misunderstandings was generally called a reborn sweet pet, a reborn warm novel, a reborn favorite novel, and so on. These novels usually described the protagonist being reborn into another world to obtain powerful resources and abilities, and then raising a powerful pet or child in this world to gradually grow up.
The main feature of rebirth novels was that the protagonist would usually satisfy the needs of his pets or children in various ways to protect their growth and make them happy. The plot usually involved feelings, family background, friendship, and other topics. The plot was full of twists and turns, and the characters were full of warmth and touching.
A novel that was reborn as a one-on-one novel was very popular among online novels. Many readers liked this type of novel because it could bring infinite warmth and touching.
"Dou Po's Endless Devouring","Dou Po: Marrying Yun Yun at the Opening, I Have Many Children and Many Blessings","Zhu Tian: Show of Divinity Starting from the Misty Cloud Sect","Dou Po: My Wife Yun Yun Beheaded Xiao Yan at the Opening","Dou Po's Reincarnation as Yun Yun","Capturing the Goddess: Drunken barge into Yun Yun's boudoir to stun everyone","Dou Po: Gifting an opportunity, obtaining a return ten thousand times!" "Battle Break: Many children and many blessings. I created the strongest clan","Battle Break: I became Xiao Yan's arch-enemy after crossing the book","Battle Break: Reborn Yun Yun, wanting to unify the Eight Desolates and Six Directions","I, the Misty Cloud Sect's boorish man, shocked Yun Yun at the beginning","Battle Break: My daily life of being chased by the goddess". I hope you like this fairy's recommendation. Muah ~😗