They could develop a mentor - student relationship. His dad, being more experienced, could teach Ash advanced Pokémon training techniques. Ash, in turn, could show his dad his unique way of bonding with Pokémon, which his dad might not have seen before, thus deepening their connection.
The relationship might develop in a very emotional way. Maybe at first Ash is hesitant to let his dad into his life, but as his dad reveals the reasons for his absence (like he was on a dangerous mission to save the Pokémon world), Ash starts to forgive him. They could then become a very close father - son duo, with Ash looking up to his dad more than ever.
The relationship could start off very rocky. King Piccolo is used to being in control and his son might be more independent - minded. But over time, they could develop a grudging respect for each other. For instance, if the son shows great strength in combat, King Piccolo might start to see him as an equal.
At first, Ash might be in awe of Mew. He has heard so much about this rare and powerful Pokémon. Mew, on the other hand, would be curious about Ash's determination and his bond with his Pokémon. As they spend time together, Ash would start to learn from Mew's unique abilities and wisdom. Mew might show Ash how to communicate better with his Pokémon on a deeper level. Their relationship could develop into a sort of mentorship, with Mew guiding Ash in his Pokémon training journey.
At first, they might be a bit cautious around each other. But as they spend more time together, they start to respect each other's skills. Ash would come to admire May's Contest skills and May would be in awe of Ash's battle prowess. They could become like a team, always having each other's backs, whether it's in a battle or a Contest.
It could be a famous Pokémon trainer. Maybe someone who has traveled to many different regions and has a lot of knowledge about rare Pokémon.
Perhaps when Ash meets his dad, his dad is on a very important mission. Ash decides to join him, and during this journey, they face many challenges together. His dad could teach Ash some new battle strategies that are different from what he has learned before. They might also encounter some rare and powerful Pokémon that they have to work together to either capture or overcome. This meeting could be a turning point in Ash's Pokémon - training journey, making him more mature and experienced.
The relationship might develop as the uncle spends more time with the baby niece. He could become her favorite person to play with as she grows up.
At first, it might be a bit awkward. But as they start talking, they'd grow closer. His father would see Naruto's growth and be proud.
The relationship can be developed through shared experiences. For example, they could go on a fishing trip together. While on the trip, they would have time to talk, share jokes, and Ash could pass on some of his wisdom to his daughter. This would strengthen their bond and she would likely say 'love you, dad' more often as they grow closer.
Their relationship could become stronger as they face challenges together. For example, if they get lost during an adventure, they have to rely on each other to find their way back. This shared experience can deepen their bond.
The relationship could start with curiosity. Naruto would be curious about Kite's skills and Kite about Naruto's strange ninja powers. Then they could become allies, fighting side by side.