One sleepless night, Ko slips out to walk the streets. Life after dark is a revelation! When flirtatious Nazuna invites Ko to spend the night at her place in an abandoned building, he’s stoked! But then he awakens to kisses on his neck with a little too much bite to them... Is it just the delicious taste of his blood that makes her meet him night after night for late-night adventures, conversation and...naps? Or something else? Then, when a cute girl from Ko’s past shows up and competes for his attention, his budding relationship with the undead is put to the test! -- VIZ Media

The tragedy of vampire hunter Anko’s past and her former relationship with Nazuna is finally revealed. But old ties don’t always lead to new ones... Then, on Halloween, while Ko suffers through a date with Rila, Anko goes on a rampage—and our gang of vampire frenemies isn’t her only target! -- VIZ Media

Kyoko launches her ambitious master plan to rid the world of vampires. How can Ko and Nazuna stop her? Then, when Ko gets injured, it leads to questions about the state of his humanity. Afterward, some relationships get mended while others are broken. Plus, a new haircut! -- VIZ Media

What’s the difference between desire and love? Does Nazuna know any better than Ko? What about Ko’s childhood friend Akira? Unable to answer these romantic questions, Ko and Nazuna go swimming. Turns out bathing beauties at pools are just as hot at night as in the blazing sunshine at the beach. Then, Ko gets jealous when he learns about Nazuna’s night job... But when she drafts him into temping for her, the two of them join forces to save a client from her boss—and herself. -- VIZ Media

Momo Ayase strikes up an unusual friendship with her school’s UFO fanatic, whom she nicknames “Okarun” because he has a name that is not to be said aloud. While Momo believes in spirits, she thinks aliens are nothing but nonsense. Her new friend, meanwhile, thinks the exact opposite. To settle matters, the two set out to prove each other wrong—Momo to a UFO hotspot and Okarun to a haunted tunnel! What unfolds next is a beautiful story of young love...and oddly horny aliens and spirits? -- VIZ Media

Nazuna can’t let her guard down for a second now that a flock of hot vampire women is interested in Ko’s hot blood! Then, when she takes a shift at a maid café where the customer is always right, the vampire is always wrong! Akira meets the girl Ko rejected before he met Nazuna, and Ko meets a private detective searching for someone he knows. Plus, a late-night visit to Ko’s school to ghost bust spooky legends leads to a thought-provoking lesson about the drawbacks of giving up your humanity... -- VIZ Media

Time has passed peacefully for Sakamoto since he left the underworld. He’s running a neighborhood store with his lovely wife and child and has gotten a bit...out of shape. But one day a figure from his past pays him a visit with an offer he can’t refuse: return to the assassin world or die! -- VIZ Media

Ko seriously considers the pros and cons of becoming a vampire. But every human has a different take on it, and one just wants to kill them all! Then, when the police are alerted to Ko’s nighttime jaunts, they start to cramp his style. Ko learns something surprising about vampire Haka—and gets a tempting offer. Nazuna has a change of heart—but not about everything. And Ko wants to know what vampire Kiku’s intentions are regarding Ko’s deliciously human friend Mahiru... -- VIZ Media

Nazuna isn’t the only one who thinks Ko is a delicious snack. And Ko isn’t the only one who gets jealous. When Ko draws the attention of four other vampire girls with nefarious intentions, he must fight for his life—even though he wants to give it up to become a vampire. But only to a certain special someone. Unfortunately, there’s a time limit on being “turned,” which raises the...uh...stakes. Then, Ko follows some dating advice that backfires. Undeterred, he tries to help another vampire and mortal mend their love/hate relationship. -- VIZ Media

Deep within the forest resides a curious pair—Mira, a girl with an affliction that calls forth the night, and Rei, a kindly doctor searching for the cure. Their days pass peacefully, until an old acquaintance of Rei’s appears...