The final, 154th chapter of Kiss x Sis manga is here. Ditama Bow, the author of the series, posted a photo of the manga spread from the chapter on Twitter, along with a message:
And so, Kiss x Sis ends!!
Thank you for following [the series] for a long time!!
The chapter is titled “last x kiss” and has “the final kiss is?” as the subtitle. There is also a caption: He’s been kissing his sisters for 17 years! They’ll always be the best sisters.
The 25th and final volume will come out on November 18, 2021.
Ditama also added a tweet about the length of serialization: It’s too long!!!!
The series has released the 24th volume on June 17, 2021. On July 21st, 2021 the author announced that the manga would end in two chapters.
Kiss x Sis
Kiss x Sis manga originally came out as a one-shot in 2004 and later started serialization on December 11th, 2005. The franchise also received two anime adaptations. The first one was an OVA series, which aired from 2008 to 2015, but it also received a TV anime in 2010 (from April 5 to June 21)*. Studio feel animated both.
DISCOTEK Media licensed the series describes it as “the original animation series, so funnier and ecchier than anything you could see on TV!” with a synopsis:
Keita is studying hard for a high school entrance test, but his two beautiful elder twin stepsisters are a constant distraction. Though they mean well, Ako and Riko are also extremely sexually assertive and interested in Keita. At first, he fends them off, but little by little, with each kiss, Keita becomes close to both twins until a forbidden love triangle develops. Will taboo-breaking love bloom between two of them… or will Keita at least get into high school?!
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*The article was edited to fix a typo that previously said the TV anime was released in 2021.