As Japan prepares to celebrate Valentine's Day, a cranky group of protesters has called for an end to public displays of love, claiming it hurts their feelings.

Members of Kakuhido, or the Revolutionary Alliance of Men that Women find Unattractive, unfurled a giant "Smash Valentines' Day" banner as the party-poopers set off to try and overthrow the annual celebration of romance.

The grumpy group elicited curious looks from passersby in the trendy Shibuya district where they rallied to buzz-kill slogans such as "public smooching is terrorism!"