Keychains and straps are small accessories usually made of acrylic or rubber which can be attached to keyrings, zippers, phones, and other items. Several companies have produced officially licensed Riddle Story of Devil keyrings and straps, mostly as tie-in merchandise for the anime series.
Contents Seed
Can Badge Straps
The Akuma no Riddle Can Badge Strap (悪魔のリドル カンバッジストラップ ) set is a set of 12 charms released in late July, 2014 by Contents Seed (コンテンツシード). They measure around 110mm (4.29in) in diameter and are made of metal with a silver chain. Each charm was sold separately for ¥600.
Keyholders
The Akuma no Riddle Acrylic Key Holder (悪魔のリドル アクリルキーホルダー ) set is a set of 13 charms released in late July, 2014 by Diomedéa. They measure around 45mm (1.76in) in diameter and are made of clear acrylic plastic with a silver chain and c-hook clasp. Each charm was sold separately for ¥620.
Diomedéa
Charms
The Akuma no Riddle Uniform Charm (悪魔のリドル 制服チャーム) set is a set of 13 charms released in late July, 2014 by Diomedéa. They measure around 45mm (1.76in) in diameter and are made of clear acrylic plastic with a silver chain and c-hook clasp. Each charm was sold separately for ¥600.
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Straps
The Akuma no Riddle Rubber Strap (悪魔のリドル ラバーストラップ ) set is a set of 4 straps released in late July, 2014 by Diomedéa. They measure around 35mm (1.37in) x 65mm (2.54in) in diameter and are made of rubber with a detachable phone strap attachment and lobster clasp. Each charm was sold separately for ¥800.
PURE
Keyholders
The Akuma no Riddle Rubber Keyholder (悪魔のリドルラバーキーホルダー) set is a set of 14 straps released by PURE. They were exclusively available at Comiket split into three separate waves. The first wave was available at the Comic Market 88 (コミックマーケット88) which ran from August 14th to August 15th, 2015. The second wave was available at Comic Market 89 (コミックマーケット89), which ran from December 9th, 2015 to December 31st, 2015. The third and final wave was available at Comic Market 90 (コミックマーケット90), which ran from August 12th to August 14th, 2016.
The character strap art was designed by series illustrator Sunao Minakata. They are made of rubber with a detachable phone strap attachment and lobster clasp. Each charm was sold separately for ¥650.
Wave 1
Wave 1
Wave 1
Wave 1
Wave 1
Surfers’ Paradise
Mobile Straps & Cleaners
The Akuma no Riddle Mobile Strap & Cleaner (悪魔のリドル 携帯ストラップ＆クリーナー ) set is a set of 4 straps with cleaner cloths released in late July, 2014 by Surfers’ Paradise. They measure around 15mm (0.59in) x 100mm (3.9in) in diameter and are made of leather with a soft cloth attachment. Each strap was sold separately for ¥800.
