Btw, Costco rules because you can just buy soju in bulk. There's 8 bottles in one case. Unfortunately none of them are lychee, but you can't win them all.
Update on the situation: I know a lot of people make jokes about soju tasting like juice, but... the green grape flavor actually tastes like grape juice.
The aftertaste in a lot of soju is usually more prevalent (?) but after trying this specific brand and flavor... I think I understand the memes that say it tastes like juice lmao. This is dangerous.