It’s a little late since the lines are gone from the homescreen, but here are all of this year’s (2021) ARB’s April Fool’s Lines!
You can however listen to them in the game’s COLLECTION. In voice lines, they should be labelled as マイルーム（エイプリルフール), at around the middle of the voice collection.
There will also be ‘Spring Voice Lines’ but I won’t be translating these - they’ll be in My Room until the 14th.
