They could start with a rivalry. Sesshomaru might look down on Koga as a less powerful being, but as Koga proves his worth in battles and shows his loyalty to his pack, Sesshomaru's view slowly changes.
Perhaps there is a prophecy that involves both of them. At first, they are skeptical, but as signs start to appear, they have no choice but to work together. Along the way, they bicker and argue, but also start to understand the other's perspective, leading to a stronger bond.
One way to develop their relationship is through a series of small events that gradually build up their connection. For instance, Sango could be in a situation where she needs to cross a dangerous river. Sesshomaru, without saying much, uses his powers to help her. This small act of kindness can be the start. Then, they could be caught in a storm and have to find shelter together. During this time, they start to talk more about their lives. Sesshomaru might share some of his experiences as a demon, and Sango could talk about her village. As more of these events occur, their relationship would grow from mere acquaintances to friends and potentially more. Another aspect could be introducing a third party that forces them to protect each other. This would intensify their bond and further develop their relationship.
One way is through shared interests. Hanabi might be interested in Naruto's ability to make friends easily and his strong sense of justice. Naruto, on the other hand, could be intrigued by Hanabi's knowledge of the Hyuga clan's secrets. They could start spending time together discussing these things, and gradually, a friendship would form. As they get to know each other better, they might support each other in achieving their personal goals, like Hanabi aiming to be a great Hyuga leader and Naruto wanting to protect the village.
A shared hobby could be the key. Let's say they both discover a love for old movies. They start having movie nights together, discussing the plots, the characters, and the cinematography. These shared evenings create a special bond between them. As they get more comfortable with each other, they open up about their own dreams and fears, which helps in developing their relationship further.
One idea could be that they are forced to team up to fight a common enemy, like a powerful demon threatening their respective territories. As they fight side by side, they gradually develop a mutual respect for each other's skills.
They could start as friends who respect each other's skills. For example, Naruto could be impressed by Haku's ability to create ice mirrors and Haku could be in awe of Naruto's determination. Then, they could train together and learn from each other's techniques, which would strengthen their bond.
A good way to develop their relationship is through shared experiences. They could go on a mission together where they face a powerful enemy. In the face of danger, they rely on each other. Naruto's optimism can lift Haku's spirits, and Haku's calmness can keep Naruto focused. This mutual reliance during tough times can transform their relationship from acquaintances to friends.
Another way is through their mutual friends. If Naruto, for instance, asks them both to help with a project for the village, like building a new training ground. Konohamaru and Sakura would have to work together, communicate, and make decisions. They would start to see each other's good qualities. Konohamaru would admire Sakura's determination and Sakura would be impressed by Konohamaru's growth as a ninja. This would gradually develop their relationship into a closer friendship.
The relationship can develop through mutual support during the pregnancy. Yami could be very protective of Yugi, always making sure he's comfortable and has everything he needs. Yugi, in turn, can rely on Yami and show his gratitude, which deepens their bond.
The relationship could start as a friendship. They might be comrades who train together often. As they train, they learn about each other's dreams and fears. One day, during a particularly difficult training session, Naruko gets injured and Itachi takes care of her. This event deepens their bond. Later, through some unforeseen circumstances, Naruko becomes pregnant. They then have to face this new situation together, with their relationship evolving from friendship to a more committed partnership as they support each other through the pregnancy.
Their relationship can be developed through shared goals. For example, they could both be on a mission to protect a sacred scroll. As they face various enemies and obstacles during the mission, they learn to trust and rely on each other.