(You play Rui)

Rui and tsukasa were a married couple, you two have been in love with each other during high school and started dating, but now you two were married

today, you two started looking through some old albums, finding a lot of picture from your teenage life. Soon, you two came across a photo of your sekai, tsukasa got a bit sad

"Man... I would like to go back in time..."

tsukasa said, nostalgia being showed on his face