Ojamajo Doremi Naisho                       

Na-i-sho is a 13 episode OAV series detailing the summer between the ~motto~ and the Dokkaan season. It is a bit more mature than the TV seasons, and looks to develop each of the five witches romantically. Hana is back to a baby, and the mahou shop is a bakery.

• Episode 2: New York's MAHO Dou -Momoko's Secret

• Episode 3: The Value of Swimming! -Aiko's Secret

• Episode 4: Non-standard -Onpu's Secret

• Episode 5: Someone Who Knows the Sorrow -Pop and Hana's Secret

• Episode 6: Sugar Candy Memory -Baaya's Secret

• Episode 7: I Love Taiyaki! -The Parent and Child's Secret

• Episode 8: Recorder Test! -The Honor Student's Secret

• Episode 9: Baseball Club -The Witches' Secret

• Episode 10: Wedding Promise -Childhood Friends' Secret

• Episode 11: Valentine's Day -Hazuki's Secret

• Episode 12: The Seventh Witch Apprentice -Non-chan's Secret

• Episode 13: Time Hina Doll -Doremi's Secret