Standing at the crossroads of life; the important choices - “Flags”. Hatate Souta, a young man who can see these flags, transferred to “Hatagaya School”, a prestigious school in the metropolitan area. Not only does he meet beautiful girls in his busy school life, he even goes as far as living with them under the same roof! Surrounded by these flags, this enviable romantic comedy begins!

Kominato Riku is a high school student who aims to be a game designer. The girl next door is his childhood friend Haju, is in love with him, but he has fallen head over heels for the school idol Riko. And lastly, there is the transfer student, Nodoka. With that all said you’d think this is the start of some love-comedy harem, but a rumor spreads that Nodoka receives a message that says, “you will die soon”. Riku and the gang’s fate will change in a major way. Who will live, and who will love?