Han: 2 han
Open or closed
Difficulty: ★★★☆☆

Requirement:
- All four groups are triplets or quads
Meaning:
A staple of call-heavy hands with stable fu and point gain.
Good with:
Yakuhai / Sanankou / Honroutou / Dora
Cannot combine:
Pinfu
Han: 2 han
Open or closed
Difficulty: ★★★☆☆

Requirement:
Meaning:
A staple of call-heavy hands with stable fu and point gain.
Good with:
Yakuhai / Sanankou / Honroutou / Dora
Cannot combine:
Pinfu