In Mahjong context riichi seems to be preferred term.
I don't really care either way I just wanted to show off my Mahjong knowledge.
What's the difference between ー and 一? On the covers they look the same, but Japanese sites differ them for this title.
I think they may be deliberately making a pun between "reach" and "riichi".
What's the difference between ー and 一?
ー (U+30FC) marks a long vowel, 一 (U+4E00) is the character for "one".