LU OVER THE WALL
A cute, charming fantasy about turning enemies into friends.
Should You Watch It?
Yes, especially if your family enjoys unusual animated adventures. Lu Over the Wall is cute and charming, with quirky humor and a strong moral worldview about making friends of enemies, overcoming fear, pursuing your gifts, and helping people in danger.
The movie is also too long, and its fantasy includes magical mermaids, a curse, magical singing, and water manipulation. A Buddhist priest appears briefly to offer general moral advice, though the source review describes this as harmless.
This is a good choice for middle schoolers and up, while parents should use discernment with younger children. For that audience, Lu Over the Wall is worth the trip.
The Story
NO SPOILERS — WE KEEP THE SURPRISESKai is a sullen 14-year-old boy who has moved with his family to the small fishing town of Hinashi. When classmates Yuoh and Kunio invite him to play keyboard in their band, Kai reluctantly agrees.
Their music attracts Lu, a young mermaid whose fins turn to feet when she hears catchy beats. Lu wants humans and merfolk to become friends, but a misunderstanding soon puts her, Kai, and the whole town in danger.
Is It Any Good?
Three stars means Lu Over the Wall is enjoyable and charming, though held back by its length. The movie has many quirky, funny touches typical of Japanese animated films, including Lu’s seaweed hair, her shark-like father in a fancy suit, and dogs transformed into swimming merfolk with dog faces and bodies.
The story also contains plenty of jeopardy and strange but funny shenanigans. Its creative humor and positive moral themes make it appealing, even though the 122-minute running time is longer than necessary.
The Worldview
Lu Over the Wall strongly values friendship, courage, overcoming fear, helping others, and pursuing dreams and gifts. Kai begins as a sullen boy who is afraid of swimming, but his friendship with Lu helps him find joy, overcome fear, and become a better person. The film also argues that happy and joyful people are more likely to do good, while anger and unhappiness can lead people toward harmful choices.
The movie encourages humans and merfolk to abandon fear and antagonism. It portrays the townspeople as afraid of change, adventure, and anyone who wants to leave their small town. The story’s central moral is that enemies can become friends when people choose courage and understanding.
The fantasy elements depart from a biblical worldview by presenting magical mermaids, a curse connected to mistreatment of merfolk, magical singing, and supernatural control of water. A local Buddhist priest appears briefly and gives general moral dictums and encouragement, without promoting specific Buddhist beliefs.
The film’s central call to turn enemies into friends aligns with Jesus’ words: “Love your enemies and pray for those who persecute you” (Matthew 5:44).
The Content Guide
The specifics — spoilers included by nature — so you can judge for your own family.
Dominant Worldview and Other Worldview Content/Elements
Strong moral worldview about making friends of enemies, having courage, overcoming one’s fears, helping others in danger, mixed with some light Romantic fantasy elements about magical mermaids and following one’s dreams, and a Buddhist priest shows up in a couple scenes, but he doesn’t seem to promote any specific Buddhist beliefs
Foul Language
One “h” obscenity
Violence
Light action violence and jeopardy includes boy has difficulty swimming, town is in danger of flooding, merfolk start to burst into flames when hit by direct sunlight during the story, townspeople imprison mermaid when they think she’s eaten teenage girl, but girl has just run away, men threaten teenagers, people try to set merfolk on fire with sunlight or bright lights, but mermaid’s father tries to save her, mermaid gently bites dogs, and they turn into swimming merfolk with dog heads and dog bodies
Sex
No sex, a couple chaste kisses
Nudity
No nudity
Alcohol Use
No alcohol
Smoking and/or Drug Use and Abuse
Fish character has a pipe in its mouth but no drug content;
Miscellaneous Immorality
Mermaid is falsely accused of eating missing girl, who ran away, and mermaid is imprisoned, hero’s mother has abandoned family and returned to Tokyo to pursue he career, and a town is under a curse because of its mistreatment of mermaids, but the effects of the curse are vague, and the curse is eventually broken.
Talk About It
Questions for the drive home, the dinner table, or the youth group.
Kai begins by sulking and fearing the water, but friendship helps him change. What fear might you face with courage and help from others?
Joshua 1:9 · Philippians 4:13The townspeople fear the merfolk and quickly blame Lu for a girl’s disappearance. When have fear or assumptions made it harder to understand someone?
James 1:19–20 · 1 John 4:18The movie calls people to turn enemies into friends. What does Jesus teach about loving those who seem opposed to us?
Matthew 5:44 · Romans 12:18Kai’s music is a gift that begins to bring joy to others. What gifts has God given you, and how can you use them to help people?
1 Peter 4:10 · Colossians 3:23The Final Word
Lu Over the Wall is a quirky, morally uplifting fantasy with a sweet friendship at its center. It runs too long and includes magical elements, but its message about courage, joy, and reconciliation makes it a worthwhile choice for older children and adults. WORTH THE TRIP — MIDDLE SCHOOL AND UP.
