Santa Company is an original work brought to life by Kenji Itoso. A short animation was released in 2014 after a successful crowdfunding campaign, followed by a feature-length version released in Japan in 2019. This work is a spin-off featuring some of the same characters. Upon their visit to a tropical island just below the equator, Mint and co. from Santa Company find themselves confronted with a mountain of ocean debris. Small acts of carelessness upon carelessness have, quite literally, piled up into a big problem—just what have Mint and the others gotten themselves into...? A splendid, yet strange, secret Christmas story. (Source: Official Site)

Su Jiu, a useless young man, was hit by the divine stone "Xingyuan", from an ordinary student without any training qualifications, to become the new master of Xingyuan. The two super beauties of Wanjie, You Yihan and Shen Mengxue, also came to pursue "Xingyuan". The two of them borrowed strongly in the name of avoiding the enemy's family. In order to attract Su Jiu to enter their own sect, they temporarily reached an agreement to teach them together. Su Jiu practiced. Unexpectedly, Su Jiuxiu, who has "Xingyuan", has made rapid progress, far beyond the imagination of the two girls.

According to HMV, the DVD & Blu-ray volume 7 of Ookiku Furikabutte ~Natsu no Taikai Hen~ will include an unaired episode 12.5. Director Mizushima posted in his blog that the special was made because they couldn't put the original manga episodes happened between the episode 12 and 13 within the TV series.

Second season of Yatogame-chan Kansatsu Nikki.