This story's next update will be on Sungjae's actual birthday about 5PM.
So this story will be on a five-day hiatus.
The Birthday Special will be five-parts long so every moment will be detailed.
Thank you for supporting "Maknae's Baby Brother BOOK 1"
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Maknae's Baby Brother ( A BTOB Fanfic ) [Season 1&2]
FanfictionI'm Yook Jaesung... Just switch the syllables of my name and it's Yook Sungjae... I'm his younger brother. We're three kids in the family, our eldest sister, SUngja and me... I'm closer with Sungjae. I've been with him since Cube Auditions... To Tr...