When the First Love Ends

Kaito and Len started as friends, with the help of their sisters, Kaiko and Rin, they became more. Over the years, Len had always waited outside Kaito's work, patiently, for five hours after his own job. The last time, it was cold and raining, and Kaito's shift took longer than he thought it would, which left Len outside for a couple more hours and making him sicker than he already (Secretly) was. After Len passes, the only question remaining is...Will Kaito do as Len last asked of him, or will the pain be too great and he joins Len in the grave...?
*Rated for language