it was a life-changing incident… kinaho lived by herself until the day her boyfriend, akito, suddenly brought home two young boys. the brothers were akito's relatives and had just lost their parents in a tragic accident. a very serious 2nd-year middle schooler called touma, his 5-year-old brother haruhi, and akito start their life together in kinaho's house. a series of confusing days give way to the beginning of their new relationship—.