秋之回忆6：三角波动
Mind Loop
A song performed under the name Tomosa Hakozaki (Autumn Memories).
Triangle Wave
The opening theme song of 'Sankaku Hadou' is performed by Ayumi Murata.
Chisa-II. -Answer to me- (Memories of Autumn 6: Triangle Wave Soundtrack)
Included in the soundtrack of the Triangular Wave original soundtrack CD (Complete Limited Edition).
Fumi's Small Restaurant (Autumn Memories)
Lilisu's grandmother runs a small eatery, and Lilisu often helps out there; Shin is also a regular customer.
The apartment managed by Zhixiong (Autumn Memories)
An old apartment near Chengkong Station. Zhixiong manages it, and Suzu moves in as Reion in her place; Family conflicts also make this place the main place where Zhixiong lives.
Kagami Foods Co., Ltd
The food company run by Chloé's family forms the background of her family. Here, it only refers to the company in the work.
Tomosa Hakozaki (Memories of Autumn)
Liris's friend, who actively invited Shio to dance the after-party dance during the cultural festival.
Yuno Kasuga (Memories of Autumn)
A junior participating in the cultural festival executive committee, sharing a radio interest with Ji-o.
Shio Tsukamoto (Autumn Memories)
A student at Sumizora Academy and the apartment manager, she becomes involved in the relationship between Ririsu and Chisa, who met as children during the cultural festival.
Ririsu Tomine (Akino Memories)
Zhixiong's childhood friend and also close friend of Tomosa Hakozaki.
Autumn Memories 6: Triangular Fluctuations
Starting with the high school autumn cultural festival, Shio Tsukamoto faces the differing feelings of his childhood friends Ririsu Enmine and Tomosa Hakozaki.
Memories Off 6 Vocal CD (Complete Limited Edition)
A 15-track album featuring the main story, epilogue, and the Complete song.
Triangle Wave Original Soundtrack CD (Complete Limited Edition)
A 28-track soundtrack album included with the Complete limited edition.