Black Valentine Day
Chitose plans to give chocolate to Haruma, who has been roped into a special Valentine's Day job by Tamami. Choco receives misinformation about the meaning of Valentine's Day from Makoto. Does Haruma have precognitive dreams ... ?
Aired 02/08/2006EP 4 - Black Valentine Day

2006
Chocotto Sister
Haruma Kawagoe is an only child. A long time ago, at Christmas time, his mother miscarried the child that was to have been his baby sister. That night, young Haruma knelt down and offered up an earnest prayer: "Please make my mother well again, and please give me a little sister." Years have passed, and Haruma has nearly forgotten his prayer. But Santa hasn't.... one Christmas, when Haruma is least expecting it, he gets an unusual present - his sister.
(Source: Anime News Network)