Jerome Polin Biography: Age, Net Worth, Brothers, Parents, Height, YouTube, Books

Jerome Polin Sijabat is an Indonesian content creator and entrepreneur best known for his YouTube channel Nihongo Mantappu, where he transforms the process of learning Japanese—and often mathematics—into entertaining, accessible content.

His engaging style, combining friendly explanations with humor and cultural insights, allowed him to rapidly build trust and rapport with audiences both in Indonesia and Japan.

Recognition arrived when Forbes included him in its “30 Under 30 Asia” list in 2021.

Profile

• Full name: Jerome Polin Sijabat
• Date of birth: 2 May 1998
• Age: 27 years old
• Gender: Male
• Place of birth: Jakarta, Indonesia
• Nationality: Indonesian
• Profession: YouTuber, Educator, Entrepreneur, Author
• Height: 5′8″ (173 cm)
• Weight: 75 kg
• Eye color: Black
• Hair color: Black
• Parents: Marojahan Sintong Sijabat (father), Chrissie/Chrissie Rahmeinsa (mother)
• Siblings: Jehian Panangian Sijabat (elder brother), Jesferrel Porman Sijabat (younger brother)
• Spouse: N/A
• Children: N/A
• Relationship status: N/A
• Religion: Christian
• Ethnicity: Batak (father) and Chinese-Indonesian (mother)
• Net worth: $260K–350K

Early Life and education

Jerome Polin Sijabat is now at the age of 27 years old. He was born on 2 May 1998 in Jakarta and raised in Surabaya after his family moved there in his early childhood.

He is the second of three children, with an older brother Jehian and a younger brother Jesferrel. Jerome attended early schooling at KB/TK Taman Harapan in Malang, then SD and SMP Intan Permata Hati in Surabaya, followed by SMA Negeri 5 Surabaya.

Driven by academic ambition and economic constraints, he applied to scholarships, initially attempting NTU in Singapore but receiving only partial funding, prompting him to pursue and win a full Mitsui-Bussan scholarship to study Applied Mathematics at Waseda University in Tokyo, graduating in March 2022. He also achieved early academic success in math and Japanese speech competitions.

Personal Life

Jerome Polin maintains privacy around his romantic life.

There are no public details available regarding a spouse, children, marriage, or extramarital relationships.

Career

Jerome Polin launched his YouTube channel “Nihongo Mantappu” in December 2017, initially co-hosting with a friend before continuing solo. His content covers Japanese language lessons, math tutorials, cultural insights, and campus life at Waseda with his peers (the “Waseda Boys”).

Achievements include YouTube Silver and Gold Play Buttons by 2019.

In 2021, he and his brother founded Q&A Group, an educational services company, and he earned a spot on Forbes Asia’s 30 Under 30. His writing includes the book “Mantappu Jiwa” (2019) and “Latihan Soal Mantappu Jiwa,” winning Rookie of the Year at IKAPI Awards 2020.

He has also appeared in advertising campaigns for brand partners including Uniqlo, Mie Sedaap, and government-led promotions like Shizuoka tourism.

Awards

• IKAPI Awards 2020 – Rookie of the Year for “Mantappu Jiwa”

Net worth

Jerome Polin’s current net worth is estimated to between $260K–350K. His TikTok earnings alone range from about USD 21,576 to USD 29,560 monthly.

Social Media

• Instagram: @jeromepolin
• X: @JeromePolin
• YouTube: Nihongo Mantappu
• TikTok: @jeromepolin98

Books

• Mantappu Jiwa (2019)
• Latihan Soal Mantappu Jiwa (2019)