In the first two episodes, we saw Itou & Yuki meet and fall in love with each other, almost like they were fated to be together. After initial years of trying to be in sync with each other and their own desires & expectations, the two have fallen into somewhat domesticated life routines by the age of 25. 

We are just little dots that were forced into this world like this,  helpless and lonely. That is why someday we search for another dot to connect with, Someone that we can form a line with and live on…