Touhou Christmas 2015! (東方クリスマス２０１５！) is the fourth, and no longer final, Cookie☆ voice drama by “Ako Atouda” that published on December 10, 2015.¹⁾ It has the short name KusoKuri☆ (クソクリ☆), but it used to be called Kusso☆FINAL (クッソー☆FINAL).

The story begins with Marisa telling Reimu that she had planned to return the stolen junk for Christmas, then Marisa takes over and starts breaking the fourth wall. They break into Alice's house to return a doll as she moans about mushrooms. Reimu briefly mentions the newer Touhou Project characters, but Marisa stops her as the 'intended' audience won't know them. They then break into Eientei to return the medicine.

Marisa then leaves for a party, so Marisa steps in as they return a cookbook for Rurima. The brief hot spring scene occurs, then they return Riran's Dark Inferno, before Marisa's mother drags her away. She is then replaced by Marisa and Marisa. They come across a cat, then they approach a fully-awake Kourin who is now under the medicine's effect, but more perverted than before, so they blast him away.

Once finished, Marisa and Marisa would leave for karaoke, so Reimu heads back to the Hakurei Shrine, and the second Marisa would return since the party wasn't worth it. There is a slightly intimate moment where Marisa says that she would rather spend Christmas drinking sake with Reimu, as the video pans to the moon and the credits roll. For the post-credits scene, Reimu and the five Marisas sing Jingle Bells.

• The voice drama is also known as Kusso☆ S4 (クッソー☆4期). It's possible to use the old naming scheme of Kusso☆☆☆☆ (クッソー☆☆☆☆), but it's starting to become incredibly clunky.
  • By the way, there is no sokuon in the 'KusoKuri☆' name. Do not come here with 'KussoKuri☆'.
• If it's most obvious, most of the character designs are recycled from older voice drama projects:
  1. SRMY姉貴 borrows design elements from BNKRG姉貴 (Cookie☆☆ S2).
  2. RK姉貴 borrows design elements from RI姉貴 (Cookie☆☆ S3) and KG姉貴 (Kasu☆).
  3. KHK兄貴 borrows design elements from MZ姉貴 (Cookie☆☆ S2).
  4. AKN姉貴 borrows design elements from RI姉貴 (Cookie☆☆ S3).
  5. YUH姉貴 borrows design elements from UDK姉貴 (Cookie☆).
  6. MGR姉貴 borrows design elements from ASZ姉貴 (Cookie☆☆ S1).
• The little 'Tamago Sushi-kun' (玉子寿司くん) from Memo☆ also makes an appearance with Riran.
• I'd assume that the Jingle Bells bonus scene is received much differently now, as the 'Padoru' meme popularized the first few lines of the Japanese-language Jingle Bells in the years following.

• Kusso☆ S1 → Kusso☆ S2 → Kusso☆ S3 → Kusso☆ S4 → Kusso☆ S5 → Kusso☆ S6
• Cookie☆☆ S1 - Main inspiration.

• Touhou Christmas 2015! on Niconico Douga
  • Touhou Christmas 2015! (English Subs) 1/2 → 2/2 on Youtube
  • Touhou Christmas 2015! (English Subs) on Niconico Douga
• KusoKuri☆ on the Cookie☆ Explanation Wiki
• KusoKuri☆ Transcript on the Cookie☆ Jikkyou Wiki