From Jshoujo Scans: Alice has been allowed to stay at the Hatter's Mansion. As Alice questions his ways there, Elliot breaks out into laughter which causes Blood to injure him badly. Alice frantic by what happened becomes angry and Blood walks off saying he's bored. Elliot confesses this is the first time anyone has cared much about him, which surprises Alice. Elliot then tells Alice something that leaves her shocked.
Thief Jin Tonic seeks the mysterious treasures known as "The Three Hearts". One night a mysterious woman falls from the sky claiming to be an escaped Princess from a sacked castle. As fate would have it, she has one of The Hearts. But is she really who she says she is? And will Jin Tonic let her live to fulfill her mission?
From Aerandria Scans: The king of hearts is the king that captures all girls' hearts. Yui, a teacher at a cram school, is a girl who always helps anyone in trouble. After seeing her neighbor, Sakimoto, collapse on the street, it was only natural for her to nurse him back to health. But when she did, she started to be interested in this somewhat mean guy...?!
Blue Hearts manga summary: “What the hell are you doing, me?” Already half of his high school life is over and none of his hopes and dreams have been fulfilled yet… This is how Yuuhi Nagi, who has no friends in his classes, has been living his uneventful empty life – until he got dragged into this unexpected crisis! This is how the lives of the four people who are…