I'm not aware of any specifically popular 'gacha lemon fanfic'. Since it seems like a rather specific and perhaps not mainstream concept, it might be hard to find ones that are widely known.
There were a few novels about villains giving birth to babies that could be recommended. "The Beauty Is Pregnant and Gives Birth to the Villain" was a complete book. It told the story of the heroine in different worlds. She gave birth to the Villain's child and was doted on. In addition,"I Give Birth to the Villain (Quick Wear)" was also a fast-wear novel. The main character was Song Qiaoqiao, who also gave birth to the Villain's child and enjoyed his love.
Words and deeds are consistent, words and deeds are consistent, people judge a book by its cover, words and deeds are consistent, words and deeds are consistent.
Yes, there are many positive friendship stories in Gacha Life. For example, characters can be shown helping each other through difficult times in school, like when one character is being bullied and the others stand up for them. They can also have adventures together, exploring new places within the Gacha Life world and sharing their discoveries. This promotes the idea of loyalty and support among friends, which is a great aspect of the Gacha Life community.
Once in Gacha Life, there was a girl named Lily. A group of mean characters would always make fun of her unique outfits. They would laugh and call her 'weirdo' whenever she entered the virtual schoolyard. One day, Lily decided she had enough. She started to focus on making real friends who liked her for who she was. She found a small group that loved her creativity in dressing up her Gacha character. Eventually, those bullies saw how happy Lily was and they stopped their mean behavior.
There was a Gacha Life love story of two characters, Rose and David. Rose was a bookworm and David was a sports enthusiast. They met at a club fair where David was trying to promote the sports club and Rose was looking for a reading club. By mistake, Rose walked into the sports club area and David kindly showed her the way to the reading club. After that, they kept running into each other. David started to borrow books from Rose and Rose would go to watch David's sports games. Their different interests brought them together and they fell in love.
A sad Gacha Life story could be about a character who loses their best friend in the game. For example, they might have planned to build a virtual world together, but then the friend quits playing. It makes the remaining character feel lonely and sad.
Once in Gacha Life, there was a character named Lily. She was always left out by the other characters in the club. They would go on adventures and have parties, but never invited her. Lily would sit alone in the corner of the virtual schoolyard, feeling so sad and unwanted. It made her virtual heart break every day.