Watashi No Kazoku Shiiku Nikki

Watashi No Kazoku Shiiku Nikki summary:

When he woke up, he was in a room he didn't recognize. A little girl, Lulu, called him "Big Brother." "We're all here, I'll go get Dad!" Then Lulu left the room with a bright smile. He didn't know where he was. And he didn't have a sister. In an instant, the door opened. Something came with a rattling sound. Something called "Dad" entered the living room. A high concentration of mystery and fear is chained together in this crazy situational thriller. If you read this, you will be part of our "family" from today.