Tokkaekko (2002)

W no Higeki and Tokkaekko have similarities in story that both characters wants
to switch lives with each other. It's just that W no Higeki is melodramatic , mystery genre and has plot twist. The characters in W no Higeki are identical twins so that they can
switch their identity.

Tokkaekko needs a magic to have the characters identity to have it switched.

Both Tokkaekko and Switched have similar plots.

Tokkaeko needed magic to have the two girls' identity to have them switch

In switched both girls have also switched identity however one of them have
encountered difficulty dealing with the situation having being switched