>>19033974(2/2)
After Samiya is raised, May leaves the capsule, initially thrilled that the temple has been saved. (In the Japanese language version of the movie, she acknowledges that Satoshi is the one who saved the Temple by saying "This is Satoshi's doing, isn't it?") Her happiness, however, is quickly replaced by sadness and the fear that Ash will not return. "It can't be..." she says while she puts her hand over her heart. "No way..." Her joy returns as soon as Ash flies up out of the water, chases down Captain Phantom, and saves the abducted Manaphy. In the manga adaption of the movie, when May and Pikachu are unsure of whether or not Ash survived trying to save the Sea Temple, she clutches Pikachu and is tearing up, but still retains hope in Ash by saying, "Ash wouldn't leave us like this..."
Additionally, at multiple points during the movie, Manaphy seems very happy around Ash, best exemplified by the fact that it seemed content and happy in Ash's arms, when it's seen to only to accept May's company, even using Heart Swap to switch between Ash and Jack Walker when the latter held it, immediately regaining its happiness after doing so. Many AdvanceShippers suggest that Manaphy has chosen Ash to be his 'father'.
When Ranger Jack moves to return into the Temple, Ash calls and warns him that it is too dangerous. Although, he submits when Jack tells him he will be fine. However, when May runs back into the Temple to follow Manaphy, Ash instinctively runs after her, presumably because, of everyone, he doesn't want to put her in danger.
It can also be noted that Jackie Walker recognized that Ash, not Max, was the closest to May and specifically asked him to separate May and Manaphy.
Also, I just want to mention that 9 probably had the best credit song of any of the movies
https://www.youtube.com/watch?v=T_2HGGhZKQ4