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My Sister is a Big Star

Wo De Jiejie Shi Da Mingxing
我的姐姐是大明星
Chị Gái Tôi Là Đại Minh Tinh
Kakakku Adalah Seorang Bintang

Sequel

manhua
On his 20th birthday, Li Xianyu inherits his father's legacy: a house, some cash, and a magical pearl. Thinking it might grant him powers, he swallows it whole. Instead of becoming a god, he gives birth to his great-grandmother.

(Source: Tencent, translated)