Episode 6Episode 6
In Mermaid Melody Pure episode 14 & 28 Kaito finally remembers some parts of Luchia then on episode 32 he remembers every thing
Pikachu loses its memory in the episode titled "A Scare To Remember."
Season 17 Episode 20
On episode 52 on the first season.
Episode 17
episode 34 in pure
Episode 13
in the "accedent"in Hawaii that evil guy(lol i can't remember his name)tries to force kaito to tell him all about the mermaid princesses,but Kaito makes himself forget all of them so the evil gut can't find anything out.They reveal this in one of the last few episodes,when they are fighting the bad guy kaito remembers this and all his memorios.this also explains why he forgot about rina and hannon.
kaito is gon's father's apprentice. when gon was young and got attacked by an animal, kaito saved him. i think kaito inspired gon to be a hunter and gon looks up to kaito and thinks of him as a friend. my memory is a bit foggy but thats the gist of it.
Yes, at the end of the first season. To be precise on the last episode of the first season, which episode 52
Luchia and Kaito kiss in episode 6 of the first season.