The 5th Nature Conservation Seminar was held on Jan. 30, 2023. In the first session, we listened to the talks by internship participants. All the talks were interesting, and it is just nice to share their experiences. In the second session, students gave short speech in English. Topic is free, but it should be related to nature conservation. Each speaker made an impressive presentation with her/his own perspective. Our programme has been supported by many people. We would like to thank their kindness.