I'm not even Japanese and I'd buy the small can. I have no use for 0.5l of coke, let alone 1.5l. It's supposed to make me a bit more concentrated, not replace m

I'm not even Japanese and I'd buy the small can. I have no use for 0.5l of coke, let alone 1.5l. It's supposed to make me a bit more concentrated, not replace my water.