About ZOONIZINI
MJ (Kim Myungjun) and JinJin (Park Jinwoo) are two of the oldest members of ASTRO and have formalized their bond through their official sub-unit, ZOONIZINI. They debuted as a duo with the mini album 'DICE' on August 13, 2025, and their lead single 'Some Things Never Change' — a title that perfectly encapsulates what fans have always loved about this pairing: a friendship that has remained constant through nearly a decade of idol life. MJ and JinJin's dynamic is one fans describe as endlessly playful and warm. They are known as the group's most exuberant mood-makers, prone to making each other and their fandom (AROHA) laugh, and their natural chemistry was one of the first things that drew fans to ASTRO when the group debuted in February 2016. JinJin has spoken publicly about their friendship spanning nearly 13 years, saying 'It's been almost 13 years since I first met MJ, and the circumstances have changed, but our chemistry and relationship are the same.' The DICE album is widely read as a love letter to that enduring bond.
MJ & JinJin is one of the warmest ships in ASTRO's fandom (AROHA), grounded in nearly a decade of documented friendship and capped by an official sub-unit debut. Fans note that ASTRO's hiatus following members' military service makes the ZOONIZINI content especially treasured.
Fun facts
- ✦ MJ and JinJin have known each other for nearly 13 years, a timeline JinJin has mentioned publicly.
- ✦ As two of the oldest ASTRO members, MJ and JinJin are the group's unofficial mood-makers and comedy duo.
- ✦ Their unit name ZOONIZINI originated when MJ suggested 'Since my name is Myung Jun, how about I go as ZOONI and we can be ZOONIZINI?' — a playful, invented word that reflects the pair's lighthearted personality.
- ✦ Their debut mini album DICE and its lead single 'Some Things Never Change' were released on August 13, 2025.
Moments
-
2025-08
ZOONIZINI Sub-Unit Debut: DICE
MJ and JinJin officially launched ZOONIZINI with the mini album 'DICE' on August 13, 2025. Their lead single 'Some Things Never Change' was described by fans and reviewers as a love letter to their enduring friendship, resonating deeply with AROHA.
-
2016-02
ASTRO Debut
MJ and JinJin debuted together as ASTRO members on February 23, 2016, beginning years of shared variety moments, fan interactions, and stage content that would define the MJ-JinJin ship within AROHA.
Ship Couples ranking by year
-
2021
#42
1712 votes
-
2022
#59
945 votes
-
2023
#66
185 votes
-
2024
#31
2332 votes
-
2025
#35
510 votes
-
2026
#42
93 votes
Best finish: #31
The pairing
Fan gallery
to add your own ZOONIZINI edits.
No fan images yet. Be the first to upload!