The Hobonichi Techo 2021 lineup includes techos of Ranma 1/2 by Rumiko Takahashi.

We're afraid it's only in Japanese, but we've prepared a Ranma 1/2 All-Stars Quiz in celebration of the release. 1 participant will be chosen at random to receive the Ranma 1/2 manga full set. We also have other presents ready, so if you can read Japanese, feel free to come give it a try!