I advertise that second one a lot so I'm surprised you haven't seen that one yet. Both are a treat. For people who don't know yet: https://mangadex.org/title/f9c33607-9180-4ba6-b85c-e4b5faee7192/official-test-manga https://mangadex.org/titles?q=April+Fool's+Collection+&page=1
For people who don't know yet:
https://mangadex.org/title/f9c33607-9180-4ba6-b85c-e4b5faee7192/official-test-manga
https://mangadex.org/titles?q=April+Fool's+Collection+&page=1