Light Novel (Other) Limited) If Her Flag Breaks I've saved my life many times thanks to this amulet on my New Year's visit. I'll lend you this. limited edition with drama CD Kodansha Lanobako Library
※Please note that product information is not in full comprehensive meaning because of the machine translation.
Japanese title: ライトノベル(その他) 限定)彼女がフラグをおられたら 今までこの初詣のお守りのお陰で何回も命拾いしたんだ、これ貸してやるよ ドラマCD付き限定版 講談社ラノベ文庫