There could be a kind - hearted wizard or mage type of character. They would use their magic to help others in the story, like healing the wounded or fighting off evil spirits. This kind of character is often a main character in such stories as they bring a sense of wonder and power. In Happy Gacha Life Story, they would be important for the plot development.
There's no definite answer as it could vary from different versions of the story. But usually, there would be the bully character and the victim - turned - love - interest character.
As it's a Gacha Life story, the main character is likely the big baby. But there could be other important characters too. Maybe there's a wise old character who guides the big baby, or a mischievous sidekick that the big baby teams up with. It all depends on how the creator of the story designed it.
There isn't really a set list of main characters in the general 'gacha life never ending story' as it depends on the player's creations. However, some popular character types might include the cute anime - style girls and boys that players often create with different personalities, like the shy ones, the brave ones, etc.
I'm not certain as the specific 'Yammy Gacha Life Love Story' isn't widely known to me. But if Yammy is in the title, Yammy is likely a main character. There might also be a love interest character, perhaps someone with a distinct personality and appearance created in Gacha Life.
Since I'm not familiar with this specific story, it's hard to say for sure. But it could be the character born without a heart as the main character, and perhaps there are other characters like friends or family in the Gacha Life world who interact with this character.
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.