A great example is also 'Sword Art Online'. Kirito and Asuna met in the virtual world of SAO, but they became very close like childhood friends might. They fought together, supported each other, and their relationship developed in the midst of the dangerous game world they were trapped in.
The cutest things could include always having a kind word when you're down, or doing a little dance to make you laugh. Sometimes, it's the way they remember the tiniest details about you that's just adorable.
Often, there is a slow - burn development. In 'Toradora!', Ryuuji and Taiga are initially at odds with each other, but as they interact more due to their shared goal of helping each other with their love interests, they realize they have a deeper connection as childhood friends who have more in common than they thought. There is also the aspect of growing up and changing, which can either strengthen or strain the friendship in these stories.
There are many possible reasons. Maybe the childhood friend had always secretly loved the protagonist and couldn't handle any competition. Or, some trauma or insecurity could drive them to be obsessive. Another possibility is that misunderstandings or external pressures played a role.
Often, these mangas have a storyline that plays on the nostalgia and close bond of childhood friendships. They might include fantasy elements or unusual situations to add to the excitement. The characters' expressions and poses are designed to be highly provocative.
Often, a cliche childhood friend onee-san manga has repetitive tropes like the childhood promise that always comes true or the overused protective older sister stereotype. Also, the story might lack depth in character motivations and have very straightforward story arcs.
First, try to reconnect with your childhood friend and remind them of the good times you had. Then, gradually build a deeper connection by sharing your current interests and dreams. Maybe plan some special outings or activities together to strengthen the bond.
It is not ethical. A childhood friendship is built on a foundation of shared experiences like going to school together, playing games, and having family - like closeness. When sex is introduced into this relationship, it can create power imbalances, feelings of betrayal, and can make the relationship feel forced. Also, society generally views childhood friendships as pure, and this change can bring about a lot of negative social and family reactions.