1. Suddenly 4 People in the Family?!

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.

Air Date : 2000-03-28

2. Ruu-kun is Climbing the Chimney

It was Miyu's first day at her new school. She finds out that Kanata has a fan club, and he is the class president. Miyu meets Christine Hanakomachi, a half-French girl who fancies Kanata. During class, Miyu spots Ruu flying outside. Kanata and Miyu chase after Ruu. Ruu ends up climbing a chimney, forcing Kanata and Miyu to climb it too.

Air Date : 2000-04-04

3. Chris Drops By

Chris and her friends came by Kanata's house to have a welcome party for Miyu. But their home turned out to be a disaster. They needed to take down floating items and hide Ruu and Wanya from their guests. Chris misunderstands Miyu and Kanata's relationship, after they discover Ruu.

Air Date : 2000-04-11

4. Momoka and the Necklace

Kanata and Miyu both go out with their friends. Before Miyu leaves, she notices that her necklace is missing. A crow has taken it. But 3 year-old Momoka chases the crow away and retrieves the necklace. While shopping for dinner, Wanya loses Ruu. Ruu finds Momoka with the necklace. They both are together, when finally Kanata and Miyu find Momoka and Ruu. Momoka starts referring to Ruu as her boyfriend.

Air Date : 2000-04-18

5. Miyu's Awful Cuisine

Air Date : 2000-04-25

6. Mama Comes Over on Mother's Day

Air Date : 2000-05-16

7. Ruu-kun, Popular at School

Air Date : 2000-05-23

8. Ruu-kun's Acting Debut

Air Date : 2000-05-30

9. A Date in the Park Between Cousins

Air Date : 2000-06-06

10. Playing with Spaced-Out Santa

Air Date : 2000-06-13

11. June, on Father's Day ... Papa Comes

Air Date : 2000-06-20

12. The Mysterious Boy, Yaboshi Seiya

Air Date : 2000-06-27

13. The Mysterious Planet Sharaku

Air Date : 2000-07-11

14. Help! Transforming Wanya

Air Date : 2000-07-18

15. Mikan Ran Away, Saionji!

Air Date : 2000-07-25

16. Ocean and the Lovers' Tree

Air Date : 2000-09-05

17. India's treasure is SAIONJI?

Air Date : 2000-09-12

18. Momoka's Passport

Air Date : 2000-09-19

19. The Mysterious Home is Miyu's Real House?

Air Date : 2000-09-26

20. The Off-season Home Visit

Air Date : 2000-10-03

21. Principal, Monkichi Reunite

Air Date : 2000-10-10

22. The Hike of Fear

Air Date : 2000-10-17

23. Everyone, Gather at Saionji's

Air Date : 2000-10-24

24. The Blackout Halloween

Air Date : 2000-10-31

25. Ruu-kun and the Department Store

Air Date : 2000-11-07

26. Yaboshi Saiya's Warning

Air Date : 2000-11-14

27. A Correspondence with Ruu's Parents

Air Date : 2000-11-21

28. Sister Comes to Saionji

Air Date : 2000-11-28

29. Nanami and the Mysterious Tsukemonoishi

Air Date : 2000-12-12

30. Wanya Wanya

Air Date : 2000-12-19

31. The First Christmas with Saionji

Air Date : 2001-01-09

32. Chris, Ski, Mansion

Air Date : 2001-01-16

33. Kanata's Childhood Friend

Air Date : 2001-01-23

34. Kanata's Promised Date

Air Date : 2001-01-30

35. Bye Bye Wanya

Air Date : 2001-02-06

36. The Heiomachi Onsen Excursion

Air Date : 2001-02-13

37. Miyu's Idol Debut

Air Date : 2001-02-20

38. Ruu-kun Has Multiplied

Air Date : 2001-02-27

39. All 100 Ruu-kuns, Gather!

Air Date : 2001-03-06

40. Kanata's Rival Appears?

Air Date : 2001-04-10

41. Kanata and Nozomu's Showdown

Air Date : 2001-04-17

42. Where is Okame-chan?

Air Date : 2001-04-24

43. The Family Assembles at Saionji

Air Date : 2001-05-01

44. Koinobori Aren't Scary!

Air Date : 2001-05-08

45. Cinderella Inside the Book

Air Date : 2001-05-22

46. Chris and the White Whale

Air Date : 2001-05-29

47. Miyu and Mini-Miyu Go to School

Air Date : 2001-06-05

48. Santa and Kanata's Weird Pot

Air Date : 2001-06-12

49. Mizuno-sensei's Mysterious Trip

Air Date : 2001-06-19

50. Stop it, Lazy Wanya

Air Date : 2001-06-26

51. Mika-san's Mysterious Promise

Air Date : 2001-07-03

52. Saionji's Ghost stories and the Mysterious Koishi Stones

Air Date : 2001-07-17

53. Miyu and Kanata Go to America

Air Date : 2001-07-24

54. Everyone but Santa goes to America

Air Date : 2001-07-31

55. The Weird Object That Seiya Left Behind

Air Date : 2001-09-04

56. Mecha Wanya Attacks!

Air Date : 2001-09-11

57. Nozomu and His World of Dream

Air Date : 2001-09-18

58. Our Pet is Number One

Air Date : 2001-09-25

59. Peppo, Ruu, and Wanya

Air Date : 2001-10-02

60. Mikan's Work Place is the Saionji

Air Date : 2001-10-09

61. Miyu and Kanata's First Kiss

Air Date : 2001-10-16

62. Nagging at the Saionji Temple

Air Date : 2001-10-23

63. Spooky Mountain Villa

Air Date : 2001-10-30

64. Meeting a Penpal

Air Date : 2001-11-06

65. Inventions are so Boring

Air Date : 2001-11-13

66. A Friend, a Rival, a Competitor

Air Date : 2001-11-27

67. Teru Arrives From Planet

Air Date : 2001-12-04

68. Bowmeow Versus Mister

Air Date : 2001-12-11

69. Ousted Guava Falls in Love

Air Date : 2001-12-18

70. Momoka’s Christmas

Air Date : 2001-12-25

71. The Seven Gods of Fortune

Air Date : 2002-01-08

72. The Same Kimono as Miyu

Air Date : 2002-01-15

73. Miyu and Little Boy Kanata

Air Date : 2002-01-22

74. Goodbye Evil Gang

Air Date : 2002-01-29

75. Valentine’s Day in Heiomachi

Air Date : 2002-02-05

76. Ruu in the Lead Role at the Cultural Festival

Air Date : 2002-02-12

77. On the Night of the Full Moon

Air Date : 2002-02-19

78. See You Again

Air Date : 2002-02-26