The manga my brother reads is already over...

I never thought it'd be finished so soon.

Well, it's been three years already, after all...

Well...

You're an adult now, so I guess it's fine...

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!