Japanese guys have it pretty sweet when it comes to Valentine's Day. Unlike their cousins overseas, they don't have to worry about sending roses or booking a table at a fancy restaurant — or, for that matter, even marking their calendars for Feb. 14. Instead, the burden falls on their girlfriends to present them with thoughtful hon-mei choko (heartfelt chocolate).

No girlfriend? No problem. The tradition of giri choko (obligation chocolate) means that even single guys are apt to get some love from classmates or coworkers. And that's not all — completists can enjoy tomo (friend) and jibun (oneself) chocolates.