Nagisa's Family Battle? Children Don't Know a Mother's Pains?!
Nagisa has an argument with her mother and feels that she is annoying. But after a conversation with her father, she realises all the trouble that her mother has gone through to look after Nagisa, so she goes home to make an apology.
Aired 01/05/2005EP 13 - Nagisa's Family Battle? Children Don't Know a Mother's Pains?!

2005
PreCure Max Heart
Shortly after the fall of the Wicked King, the Queen of the Garden of Light lost her memory and came to Earth, in the form of a 12-year-old girl named Hikari Kujou. Now, she - with the help of Nagisa and Honoka, endowed with new costumes and powers - must find the 12 Heartiels, which hold the key to restoring the Queen's lost memories. For together once again, they are Pretty Cure.
(Source: AniDB)