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Season
Season 1 Episode
- Season 1 Suddenly 4 People in the Family?!
- Season 1 Ruu-kun is Climbing the Chimney
- Season 1 Chris Drops By
- Season 1 Momoka and the Necklace
- Season 1 Miyu's Awful Cuisine
- Season 1 Mama Comes Over on Mother's Day
- Season 1 Ruu-kun, Popular at School
- Season 1 Ruu-kun's Acting Debut
- Season 1 A Date in the Park Between Cousins
- Season 1 Playing with Spaced-Out Santa
- Season 1 June, on Father's Day ... Papa Comes
- Season 1 The Mysterious Boy, Yaboshi Seiya
- Season 1 The Mysterious Planet Sharaku
- Season 1 Help! Transforming Wanya
- Season 1 Mikan Ran Away, Saionji!
- Season 1 Ocean and the Lovers' Tree
- Season 1 India's treasure is SAIONJI?
- Season 1 Momoka's Passport
- Season 1 The Mysterious Home is Miyu's Real House?
- Season 1 The Off-season Home Visit
- Season 1 Principal, Monkichi Reunite
- Season 1 The Hike of Fear
- Season 1 Everyone, Gather at Saionji's
- Season 1 The Blackout Halloween
- Season 1 Ruu-kun and the Department Store
- Season 1 Yaboshi Saiya's Warning
- Season 1 A Correspondence with Ruu's Parents
- Season 1 Sister Comes to Saionji
- Season 1 Nanami and the Mysterious Tsukemonoishi
- Season 1 Wanya Wanya
- Season 1 The First Christmas with Saionji
- Season 1 Chris, Ski, Mansion
- Season 1 Kanata's Childhood Friend
- Season 1 Kanata's Promised Date
- Season 1 Bye Bye Wanya
- Season 1 The Heiomachi Onsen Excursion
- Season 1 Miyu's Idol Debut
- Season 1 Ruu-kun Has Multiplied
- Season 1 All 100 Ruu-kuns, Gather!
- Season 1 Kanata's Rival Appears?
- Season 1 Kanata and Nozomu's Showdown
- Season 1 Where is Okame-chan?
- Season 1 The Family Assembles at Saionji
- Season 1 Koinobori Aren't Scary!
- Season 1 Cinderella Inside the Book
- Season 1 Chris and the White Whale
- Season 1 Miyu and Mini-Miyu Go to School
- Season 1 Santa and Kanata's Weird Pot
- Season 1 Mizuno-sensei's Mysterious Trip
- Season 1 Stop it, Lazy Wanya
- Season 1 Mika-san's Mysterious Promise
- Season 1 Saionji's Ghost stories and the Mysterious Koishi Stones
- Season 1 Miyu and Kanata Go to America
- Season 1 Everyone but Santa goes to America
- Season 1 The Weird Object That Seiya Left Behind
- Season 1 Mecha Wanya Attacks!
- Season 1 Nozomu and His World of Dream
- Season 1 Our Pet is Number One
- Season 1 Peppo, Ruu, and Wanya
- Season 1 Mikan's Work Place is the Saionji
- Season 1 Miyu and Kanata's First Kiss
- Season 1 Nagging at the Saionji Temple
- Season 1 Spooky Mountain Villa
- Season 1 Meeting a Penpal
- Season 1 Inventions are so Boring
- Season 1 A Friend, a Rival, a Competitor
- Season 1 Teru Arrives From Planet
- Season 1 Bowmeow Versus Mister
- Season 1 Ousted Guava Falls in Love
- Season 1 Momoka’s Christmas
- Season 1 The Seven Gods of Fortune
- Season 1 The Same Kimono as Miyu
- Season 1 Miyu and Little Boy Kanata
- Season 1 Goodbye Evil Gang
- Season 1 Valentine’s Day in Heiomachi
- Season 1 Ruu in the Lead Role at the Cultural Festival
- Season 1 On the Night of the Full Moon
- Season 1 See You Again
Daa! Daa! Daa! UFO Baby - Season 1 Episode 1 Suddenly 4 People in the Family?!
8.50 25 minutes Miyu Kōzuki's parents had moved to the United States to work for NASA. Miyu has been told she is to live with her parents' old friend. She arrives, and it turns out to be a Buddhist temple. She meets her parents' friend, the temple monk, Hoshou Saionji, and his teenaged son, Kanata. The monk soon leaves for India for religious training, leaving Miyu behind with Kanata. Shortly after, a UFO flies into the house, and inside were an alien baby called Ruu and a "sitter-pet" called Wanya. They all then decide to live in the temple together. Kanata peeps at Miyu while she's showering, just as Miyu has seen him changing.
