The male lead was the female lead's childhood friend, the legendary childhood sweetheart. But she was jealous and possessive... Being jealous is cute... The second male lead is gentle
This kind of plot was more common and would usually resonate with the readers and make them emotionally invested. The male lead usually had special feelings for the female lead, and the female lead would play a more complicated role in the middle. Sometimes she liked the male lead, sometimes she liked the second male lead, and sometimes she liked both. This kind of plot usually involved emotional entanglements, family background, misunderstanding and reconciliation, and many other aspects. It had a certain tension and appeal.
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.
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.
Once, my friend Lily was jealous of my new dress. I got this beautiful blue dress for a party. When I showed it to her, she made sarcastic remarks like 'It's too flashy for you'. At the party, instead of being happy for me when others complimented my dress, she told them it was not as great as it looked. Later, I talked to her about how her jealousy made me feel bad. She realized her mistake and apologized.
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.