Surprise!I just thought you'd be happy, Arisa...
Since you were saying you wanted a bicycle date...So I don't really know how to ride a bicycle...I am very happy!! Eeeh? You could have told me...We could have just walked...My parents' place is on a very high hill...No...The summary so far:
Arisa has lost her memories of recent years due to amnesia.
Despite being rather surprised by the sudden news of her same-sex relationship with Mari-san, she isn't the least bit concerned over her amnesia at all.
In return for their memories together that she has lost, these once-again-new-lovers' antics make for a fresh and exciting everyday life...?!
This is an earnestly cheerful amnesia comedy!