Undead Girl Dreams Of An AngelUndead Girl Dreams of an Angel; 死なない少女は天使の夢を見る; Shinanai Shoujo wa Tenshi no Yume wo Miru

Having lost all will to live, Haimura Shiru decides to commit suicide... only to discover that she's apparently immortal. It is then that she comes across a wealthy girl named Shiroganemori Iori, who makes her a deal.