After Waking up from Amnesia in Yokohama

One day, she woke up from the bench and her mind went blank. She has lost her memory. In order to retrieve her memory, an amnesiac girl named "Riko" joined the Armed Detective Agency and embarked on a journey to find her memory in Yokohama. "Beep-beep-" ——... Did it succeed? … ——…No…but we… ——…It doesn't matter…it's much better than before… ——…We have countless opportunities… ——... Yes... And the enemy... ——... Only one chance. *A hole that may not be filled Concept: Memories are very important