First up is "yakuhai".
Yakuhai is a yaku where you have a koutsu of jihai, such as bakaze or jikaze, and is worth 1 han.
If you have a koutsu of sangenpai, there are no other requirements to meet for this yaku.
In addition, it's yakuhai if you have a koutsu of bakazepai or jikazehai.
Generally, it'll be ton in tonba or nan in nanba.BakazepaiEh?SangenpaiDabutonTonba, TonchaAs usual, your host is Taco Yuuki-chan.
And the assistant is Saki-pen.Saki-chan broke!?Sa, Saki-chan
Why are you wearing a kigurumi?I, I see.Wouldn't it be better as Saki-pen's Mahjong Class?
Is what some of them were saying.Everyone sure likes jokes, don't they?Staff! Prepare me a taco kigurumi!If you're toncha during tonba and have a koutsu of ton, it's called dabuton (double ton).
If you're nancha during nanba and have a koutsu of nan, it's called dabunan (double nan).Dabuton and dabunan are also called renfonpai.ExampleTonba, ShaachaJikazehaiNanba, PeichaJikazehaiHello, it's time for Taco Yuuki's Mahjong ClassThis? It seems that is was very well-received by the readers when I wore it in the main story and they wanted me to wear it in this corner, too, so I'm wearing it.This time, we'll be continuing the explanation of yaku.SangenpaiNanba, NanchaDabunanYakuhai isn't subject to kuisagari.We've chosen some commonly used yaku this time, too.