From OneManga:

The japanese government has launched a brand new law: because of the lazyness and apathy of Japan's people it was decided that someone, daily and randomly, will be chosen and killed with a poisoned capsule in order to "bring to life again" and wake up the others.
The person elected will be warned with an ikigami (or death's notice) and after this he/she will have only 24 hours left to live.
What will those condemned think and do during this short time?

OneManga link:
http://www.onemanga.com/Ikigami/

Comments:
-Feels like Bokurano in some ways.