I feel this ending was somewhat rushed, and while the result is decent, it could have been better. As I mentioned in Part 9, I didn't like the use of normal faces, as they felt out of place after such a long journey of sexual depravity. I'm glad to see that the artist, Blacktan, opted for lascivious expressions again, achieving a more balanced approach without falling into exaggeration (just like how he drew the faces in the first chapters between 2022 and 2023).
Regarding the Sussurro section, I have mixed feelings. On the one hand, I liked that the author adapted it faithfully in part; the problem is that this faithfulness only lasts until page 3, where Nian appears out of nowhere to join a threesome. In the original erotic novel, Suzuran has sex exclusively with Sussurro, and the encounter has more content than just one page (I would have liked to see more scenes with her).
I gather that this Part 10 is the end of the entire Suzuran story illustrated by Blacktan. If so, I can understand why he rushed things: if the story had simply ended with Suzuran ejaculating inside Sussurro, it would have been a very anticlimactic ending. Therefore, the artist decided to use the dining room setting from Chapter 3 of the novel as a finale that wouldn't feel so empty (in this case, with Suzuran and Nian getting their way at a buffet of multiple women).
It's important to note that Nian's inclusion at the end of this story was premature. In Chapter 3 of the novel, Suzuran is up to her usual antics with Franka and Liskarm in the dining room (without penetration, similar to what happened with RockRock and Closure). It's not until Chapter 4 of the novel (the latest chapter so far, published on March 6, 2024) that Suzuran and Nian meet face-to-face; there, Nian introduces her to her older sister, Ling (who granted her powers). Eventually, Ling has sex with Suzuran, and then Nian joins in for a threesome whose pose is almost identical to the one shown on page 5 of this doujin (with the difference that Ling was in the doggystyle position).
Before drawing my conclusions, I must admit that I also would have liked to see that alternate route where Suzuran possibly had a foursome with Lappland, Texas, and Exusiai (https://blacktanbox.fanbox.cc/posts/7286259). I'll have to live with the disappointment of not witnessing it, just like when, in One Punch Man, Murata redrew the conversation that was going to take place between Garou and Saitama to create a much more spectacular and cosmic route.
Having said all that, the entire development of "ご都合能力を手に入れたニェンが、ロ〇スでめちゃくちゃする話 番外編 スズラン" (December 19, 2022 - May 20, 2026) was a true odyssey for Blacktan: constant breaks, several redraws, hospitalizations, and depression. In the end, he managed to overcome it all and complete the story. Blacktan adapted Cliff's (絶壁) original erotic novel almost perfectly, something for which we are all deeply grateful.