Kaito loses his memory in "Magic Kaito 1412," specifically in Episode 17 titled "The Memory Thief." In this episode, he encounters a magical artifact that causes him to forget his identity and past. The storyline explores the challenges he faces as he tries to regain his memories while dealing with the consequences of his lost identity.
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.
Yes, at the end of the first season. To be precise on the last episode of the first season, which episode 52
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.
Luchia and Kaito kiss in episode 6 of the first season.