Shugo Chara!! Doki Episode 30: Infiltration! Easter Company!?
Episode 30 of 51 of Shugo Chara!! Doki, aired May 2, 2009, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Ikuto has recovered! Yaya proposed to go along with the Easter company but Kiseki blamed Yoru for everything which made him down in the slumps. The guardian characters went with Yoru to look for Ikuto but Yoru wanted to do something on his own. Kiseki noticed this and tagged along with Yoru. Source: crunchyroll