Synopsis
One morning, you wake up to find…
“Where am I?” “Wait, what?” “…Who am I?”
The protagonist (Usomiya Masashi) has completely lost his memory! Without knowing his own name, he explores an unfamiliar house and discovers the following information…
Apparently, he has three younger sisters, and they’re all living together in this very house. To make matters worse, their parents are currently away on an overseas trip.
This means the amnesiac protagonist must suddenly share a roof with these high school girls who are complete strangers to him… and they treat him as their older brother!
Will his rationality hold out, or will it crumble?
And more importantly, will his memory ever be restored?
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