Monday change of Opening and Ending
Opening
https://openings.moe/video/ZokuSayonaraZetsubouSenseiOP01NCOLD.
https://anilist.co/anime/3228/ZokuSayonaraZetsubouSensei/
Ending
https://animethemes.moe/video/NHKNiYoukosoED1NCDVD480.
https://anilist.co/anime/1210/NHKniYoukoso/