The raw, real road show of single men who want to fill the lost half of their lives with 'uncertain happiness'! "I also... want to be happy!!!" Amidst a busy and chaotic reality, the happiness they could only dream of, like a picture on the wall! These single men, desperately yearning for that lost happiness, set off without thinking. Even if it may seem reckless to others, it's to find 'certain happiness' for themselves! The happiness fairies gathered to find their own 'uncertain happiness'! Hobbies, tastes, eating habits, customs... They have so many differences! While searching for happiness together, they sometimes encounter unexpected misfortunes and fall into panic from sudden crises, creating a crazy brotherhood with improbable chemistry! What is the happiness they dream of? Can they be happy together?