- Chi Jiro is an unemployed indoorsy at the age of 35. Soon after he met Koizumi (A Dog), his social circle expanded. Jiro gets to meet many new friends and his life is getting interesting. Ever since he moved oversea, he has becomeing increasingly extroverted and actively involving in socializing. One day, he finds himself falling into the trap of closing his heart to others and started to worry about his life once again...