Nogizaka Under Construction Season 9 Episode 20 Oniichan's Present Championship - Part 1 ( Air Date 2023-05-22 ) Genre Talk category. Overview "Nogizaka46 is making a big leap forward right now! Their activities range from live performances, varieties, dramas, movies, and models. In order to give these girls even more momentum, this program will challenge various projects that bring out new aspects and charms of the members!!!".