| High School - Year 1 |
| Sep 10-20 |
Chapter 01. Miharu and Kazuo meet. Otsukimi/Moon Watching Festival. |
| Sep 20-25 |
Supplement 01. "Official" dinner meeting with Fujiwara and Ogawa families. |
| Sep 26 |
Reika's birthday. She turns sixteen years old. |
| Oct 1 |
Chapter 02. "Changing of the clothes," or koromo-gae, to winter uniforms. |
| Dec 23-24 |
Chapter 03. Christmas Eve. |
| Mar 1-7 |
Chapter 04. Mar 4 - Kazuo's birthday. He turns twenty years old. |
| Mar 22-31 |
Chapter 05. Spring Vacation. |
| High School - Year 2 |
| Apr 1-6 |
Chapter 06. New school year begins. Miharu starts second year of High School. Ohanami/Cherry Blossom Watching Festival. |
| May 1 |
Miharu's birthday. She turns seventeen years old. |
| May 5-7 |
Chapter 07. |
| Jun 1 |
"Changing of the clothes," or koromo-gae, to summer uniforms. |
| Jun 10 |
Chapter 08. |
| Jul 7 |
Chapter 09. Tanabata. |
| Jul 21-Jul 26 |
Chapter 10. Start of Summer Vacation. Ueno Zoo trip. |
| Jul 28-Aug 4 |
Chapter 11. |
| Aug 4-10 |
Supplement 02. |
| Sep 1 |
Chapter 12. Summer Vacation ends. Second school term begins. |
| Sep 4-5 |
Chapter 13. |
| Sep 5-6 |
Chapter 14. |
| Sep 9-15 |
Chapter 15. Fuuko leaves for Tokyo. |
| Sep 16 |
Chapter 16 & Supplement 4. |
| Sep 26 |
Reika's birthday. She turns seventeen years old. |
| Oct 1 |
"Changing of the clothes," or koromo-gae, to winter uniforms. |
| Oct 3 |
Chapter 17 & Supplement 5. |
| Dec 22/23 |
Chapter 18. |
| Dec 30-31 |
Chapter 19. |
| Jan 8 |
Chapter 20. |
| Jan-Mar |
Chapter 21. Mar 4 - Kazuo's birthday. He turns twenty-one years old. |
| High School - Year 3 |
| Apr 1-2 |
Chapter 22. New school year begins. Miharu starts third/final year of High School at Harusono. |
| Apr 2-3 |
Chapter 23. Reika meets Eiji's family. Miharu meets Tomi Hisamori. |
| Apr |
Chapter 24. |
| Apr 27 |
Chapter 25. |
