Amanchu! by Amano Kozue — Not Updated and Ongoing

67f4fd1fd94e651b540ddc148b10a401

Hikari Kohinata is a cheerful 15 year-old girl who lives near the ocean and she spends much of her time diving as a result. On her first day of high school, she meets a teacher who also likes scuba diving. There's also a 16 year-old classmate, Futaba Ooki, who gets dragged along in Hikari's maelstrom as soon as they meet at school.

Extras released Oct 22 '15
Chapter 1: The Girl and the Sea released Dec 13 '08
Chapter 2: Yumegaoka High released Jan 2 '09
Chapter 3: School Life released Feb 7 '09
Chapter 4: A Path in the Air released Mar 8 '09
Chapter 5: Cherry Blossom Path released Apr 20 '09
Chapter 6: Dotty and Pikari released Jun 6 '09
Chapter 7: Roadside Station released Jun 16 '09
Chapter 8: Pool Training released Jul 16 '09
Chapter 9: Springtime Murkiness released Aug 10 '09
Chapter 10: Meeting Again released Sep 20 '09
Chapter 11: Meeting released Oct 24 '09
Chapter 12: Treasure released Nov 28 '09
Chapter 13: Into the Rainy Season released Jan 25 '10
Chapter 14: Dotty and a Lecture released Feb 21 '10
Chapter 15: Love Letter released Mar 4 '10
Chapter 16: Abandoned Cat released Apr 7 '10
Chapter 17: Towards the Azure Sea released May 17 '10
Chapter 18: The Sea's Blessing released Jun 16 '10
Chapter 19: Daruma released Oct 23 '10
Chapter 20: Closing Ceremony released Jan 7 '11
Chapter 21: Choice released Apr 16 '11
Chapter 22: The Daily Life of a Certain Advisor released Jul 20 '11
Chapter 23: Reunion released Dec 23 '11
Chapter 24: Summer Magic released Jun 3 '12
Chapter 25: Pitch Black World released Nov 6 '12
Chapter 26: Initial G released Nov 6 '12
Chapter 27: Navigation released Nov 8 '12
Chapter 28: Sending Off released Nov 11 '12
Chapter 29: Going in Circles released Nov 15 '12
Chapter 30: Field of Fireworks released Dec 7 '12
Chapter 31: 2nd Team released Sep 13 '13
Chapter 32: Fitness Evaluation released Sep 30 '13
Chapter 33: The Sea of Miracles released Feb 2 '14
Chapter 34: Zenyasai released Jul 7 '14
Chapter 35: Neverland released Apr 12 '15 Supernatural
Chapter 36: Onsenmaru released Dec 26 '14
Chapter 37: Red Cherry Blossoms released Jul 3 '15
Chapter 38: A Small Tea Shop released Aug 5 '15
Chapter 39: My Own Dry Suit released Oct 1 '15
Chapter 40: Dragon Palace Castle released Oct 22 '15
Chapter 41: Halloween released Nov 1 '15
Chapter 42: Autumn Festival released Nov 5 '15
Chapter 43: A Winter Holiday released Feb 10 '16
Chapter 44: The Mysterious (Black) Mermaid released Mar 20 '16
Chapter 45: Merry Sisters released Mar 20 '16
Chapter 46: Mischief of the North Wind released Apr 23 '16
Chapter 47: New Year's Eve released Apr 23 '16
Chapter 48: Year of the Dragon released Apr 23 '16
Chapter 49: Warm Weather Advisory released May 31 '16
Chapter 50: Happy Star released Jul 4 '16
Chapter 51: Boat Driving released Sep 13 '16
Chapter 52: The Lost Person released Dec 26 '16 Supernatural
Chapter 53: The Place of Origin released Feb 22 '17
Chapter 54: That which falls from heaven released May 12 '17
Chapter 55: Return of Peter Pan released May 22 '17
Chapter 56: Spring That Guides You released Jun 25 '17
Chapter 57: The Blue Frontier released Dec 2 '17
Chapter 58: The Sea Historia released Apr 2 '18
Chapter 59: Yamayaki Festival released Apr 15 '18