Batman would marry two face in this universe.

From Shoujo Sense: Story 4: Ashes to Ashes by Natsunishi Nana Story 6: Someday by Sakurai Ato

Mad Hatter Scans:

In this world artists have special powers that helps them create their art, but when artists began using human souls as raw material for their work, being an artist is no longer what is used to be. Follow Acro, a young artist starting his new action packed adventure to realize his dreams despite it’s impossibility and to gain the understanding of what it means to become a great artist.

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A boy with a special skill called invulnerability, or in other words, immortality. Hated by shinigami is visited by one! Now he and his research team have to find a way to stay "alive"

From MangaHelpers:

Ever since an childhood incident, Chiaki has never been able to truly feel joy or have fun. One day, his traveling father sends him a mysterious cardboard box. Once opened, a girl who calls herself Cerberus pops out of the box! This girl, who has three personalities in one, vows to protect Chiaki from all harm. Will Chiaki be able to live with this three-in-one girl? [DrCoke]