秋之回忆6：下一篇章
Feelings ride the waves (Next Relation)
Yuino and Shio decide to participate in the Hamasaki FM radio competition, cherishing the time spent preparing together in summer due to their busy school preparations.
Next Relation
Zhixiong's father invites him and Chisa to join the new family on a trip. Chisa has always been attentive to her lover, and Ji-woong worries she might neglect his time; This trip also made her hope to gain her father's approval.
Akitsu Kana (Autumn Memories)
She appears in the public cast list of Next Relation, voiced by Sayuri Mizoguchi.
Next Relation PS2/Xbox 360 version
Two editions of the post-diary were published simultaneously on August 27, 2009.
クォリファイ・ペリオッド（Next Relation）
Suzu travels with Zhixiong under the pretext of searching for novel material, trying to clarify the age gap and her own feelings.
Shape of Feelings (Next Relation)
Ririsu and Shio go from childhood friends to lovers; they are close but find it hard to get used to their new identities. The grandmother invited the two to travel to Longjing Hot Spring Town.
Marriage of the Heart (Next Relation)
After entering university, Chloe lives at a different pace than Zhixiong, who is still in high school; she prefers to live in an apartment with her lover.
In the nature -tranquillo- (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
An epilogue -memories off- (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Way started now (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Chisa -NR version- (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Always together, even farther away
The ending theme for the next chapter is sung and written by Ayane.
Next Relation (Theme Song)
The opening theme for the PS2 and Xbox 360 versions is performed by Velforest.
Chloe -NR version- (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Autumn Memories 6: Next chapter
It continues the story of the five female protagonists of Sankaku Hadou, depicting the distance between school admission, travel, radio competitions, and becoming lovers.
Next Relation Original Soundtrack CD (Complete Limited Edition)
Complete Limited Edition includes 23 tracks with post-naroky soundtracks.
Next Relation PSP version
Released on October 14, 2010, it switched to Zwei's new launch.
Namasute, 8bit (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Mind Loop -monologue- (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Serene sky (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Forever More
The 2010 PSP version replaced the original opening with a new opening.
Second chapter (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Rainbow Highway -monologue- (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Monologue (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Ryuzakai (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
In the Nature (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Mahiro -NR version- (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Toru (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Haruka Kanata -monologue- (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Common heart (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Noelle (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Blue Moon -monologue- (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Riris -NR version- (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Yuno -NR version- (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Rein -NR version- (Memories of Autumn 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Candy Love -monologue- (Autumn Memories 6: Next Chapter Soundtrack)
Included in the soundtrack of the Next Relation original soundtrack CD (Complete Limited Edition).
Hamasaki FM (Akino Kaireki)
The radio station involved in the after-story of Yuno, the radio competition allowed her and Ji-woong to submit submissions and prepare for summer activities.
Aomine Gakuin University
After graduating from high school, Croai attended a university with a faculty of economics. Her schedule differs from Ji-o's, who is still in high school, serving as the backdrop for the post-day romance of dealing with romantic distance.
Longjing Hot Spring Village (Autumn Memories)
Next Relation has added a hot spring stage, alongside scenes by the Clear Sky Beach and mountains, appearing in the story of summer travel.