Jun 7
Title: Threshold
Arrangement: yusi.
Album: Aura Sphere
Circle: MAD MIND MACHINE
Original: Into Backdoor
seen from United States
seen from Peru
seen from United States
seen from Germany
seen from United States
seen from United States
seen from United States
seen from United States
seen from Finland
seen from United States
seen from United States
seen from United States
seen from United States
seen from Peru
seen from United States
seen from United States
seen from United States
seen from United States
seen from United States
seen from Canada
Title: Threshold
Arrangement: yusi.
Album: Aura Sphere
Circle: MAD MIND MACHINE
Original: Into Backdoor
Title: 後戸を操りし幻想郷の賢者
Arrangement: 白鷺ゆっきー
Album: 風心花伝
Circle: 針の音楽
Original Themes:
The Concealed Four Seasons
Secret God Matara ~ Hidden Star in All Seasons.
Does the Hidden Door Lead to This World, or the World Beyond?
Crazy Backup Dancers
Into Backdoor
No More Going Through Doors
A Star of Hope Rises in the Blue Sky
The Colorless Wind on Youkai Mountain
Swim in a Cherry Blossom-Colored Sea
Illusionary White Traveler
Title: 不採用Seasons (Rejected Seasons)
Arrangement: 梗
Vocals: 越田Rute隆人
Album: Associate Door
Circle: AbsoЯute Zero
Original: Into Backdoor, The Concealed Four Seasons
Title: サイハテハーバリウム (The Furthest Herbarium)
Arrangement: kaztora
Vocals: あよ
Album: Season 4 u
Circle: 森羅万象
Original: Into Backdoor, The Concealed Four Seasons
Title: WORLD DOMINATION
Arrangement: GUCCI & MasKaleido
Vocals: Nana Takahashi
Album: 天 -TEN-
Circle: SOUND HOLIC
Original: Into Backdoor, The Concealed Four Seasons
Title: Ushirodoor set 11 ～ イントゥ・バックドア
Arrangement: Rin
Album: House Set of “Hidden Star in Four Seasons”
Circle: クロネコラウンジ
Original: Into Backdoor
