Season 1
Ep. 1: "The Story of the Girl and the Ocean"
Ep. 2: "The Story of Doing Something Bad With Hikari"
Ep. 3: "The Story of the Secret to Excitement and Happiness"
Ep. 4: "The Story of Excitement and the Despairing Heart"
Ep. 5: "The Story of the First Time at Sea With Friends"
Ep. 6: "The Story of the False Wish"
Ep. 7
"The Story of the End of Rain"
"The Story of the Beginning of Summer"
Ep. 8
"The Story of the Feelings Yet Hidden"
"The Story of Things Yet Unknown"
Ep. 9: "The Story of the Memories You Can't Erase"
Ep. 10: "The Story of Losing Your Way in Today"
Ep. 11: "The Story of the Cat and the Kitten"
Ep. 12: "The Story of the Blue World"
OVA: "The Story of the Promised Summer and New Memories"
Season 2
Ep. 1: "The Story of One Summer Night and a Confession"
Ep. 2: "The Story of Midsummer and Sparkling Eyes"
Ep. 3: "The Story of the Pro and the Expert of Happiness"
Ep. 4: "The Story of Autumn and a Tender Happiness"
Ep. 5: "The Story of the Jet-Black Mermaid and the Solitude of 18m Under"
Ep. 6: "The Story of a Halloween Night's Dream"
Ep. 7: "The Story of the Neverending School Festival"
Ep. 8: "The Story of Fleeting, Unfulfilled Desires"
Ep. 9: "The Story of Tears and an Endless Dream"
Ep. 10: "The Story of a New Beginning and New Feelings"
Ep. 11: "The Story of Cold, Flames and Well Wishes"
Ep. 12: "The Story of Future possibilities"