FROM STRANGERS TO FAMILYWhen his father remarries, Yuuta Asamura winds up sharing a roof with a brand-new stepsister, who is also the hottest girl in his grade! But Yuuta and his new sister, Saki Ayase, have no delusions—they both carry trauma from their parents’ difficult divorces, and they agree to keep a respectful distance. As it turns out, however, the two have a lot in common, and slowly, cautiously, they grow closer. But is the emotion blooming between them simple admiration, famili...

When high schooler Yuuta Asamura learns his father plans to remarry, he’s not too bothered by the idea…until he finds out his future stepmom has a daughter! Her name is Saki, and to Yuuta’s surprise, she’s a beauty who’s made a reputation for herself as an unapproachable “bad girl.” But as he gets to know her, he realizes she’s not the person everyone says she is. Could he be the one she finally opens her heart to?

ROMANCE OVERSEAS? After spending their first New Year’s together, Yuuta and Saki grow even closer. February brings Valentine’s Day, a school trip to Singapore, and, in turn, new encounters and realizations. Yet despite these special events, the pair must maintain a certain distance in order to keep their secret, and so they feel lonely even when together. What will happen when the stepsiblings, who have always kept themselves in check, begin to explore a new, more selfish kind of happiness...

Saki and Yuuta have finally found a small group of people who accept their relationship, but big changes are coming for them as they enter their final year of high school. The pair must navigate being in the same class, preparing for college entrance exams, and planning for the future as they approach their new family's first anniversary. They've grown so much closer over the past year, but it may be time to reevaluate that distance.

Ryouran High School is a private arts academy full of geniuses in every field-music, dance, fashion. But in reality, it's looks, not talent, that decide its students' success. My sister, Shika Ikebukuro, is a shut-in who can't do anything without her older brother, and I was sure that devastating lack of charisma would doom her. But I know a secret. Behind her mask, the internet sensation VSINGER is none other than my sister Shika! Her voice is one-of-a-kind, but will it be enough to overc...

HOW CLOSE IS TOO CLOSE?Yuuta Asamura is still figuring out how to interact with his new stepsister, Saki Ayase. After discovering they have more in common than expected, the two reach a comfortable equilibrium, but things start to get out of whack when Saki fails one of her exams and asks for Yuuta’s help. Then Yuuta’s attractive college-age coworker, Shiori, invites him out on a date, and Saki finds a strange new emotion welling up in her heart…Just what is this feeling?

A high school boy gets picked on by his friend’s annoyingly cute sister, setting the stage for this teenage romantic comedy!“My best friend is the only one who has my spare keys, but for some reason, his little sister always sneaks into my room...” Ooboshi Akiteru is a high school boy who is the very definition of ordinary. He leads an efficient life while being content with his unmemorable existence until his days are completely changed by Kohinata Iroha, the youn...

ALL WORK AND NO PLAY ... It’s Yuuta and Saki’s first summer vacation as stepsiblings, and they’ll be working at the same bookstore! As Saki’s coworker, Yuuta begins to see a side of her he hadn’t noticed before. But after observing her new coworker for a while, Shiori makes a dark observation—if Saki doesn’t ease up and stop pushing herself so hard, sooner or later she’s going to fall apart. In order to help her, Yuuta will have to make a decision. Should he interfere in his stepsister’s l...

A month has passed since Yuuta and Saki have become siblings. They agreed to keep a respectful distance from each other, but when Yuuta’s attractive coworker asks him out on a date, Saki finds a strange new emotion welling up in her heart…

HAPPY BIRTHDAY, YUUTA AND SAKI!Infected by the magic of Halloween night, Yuuta and Saki sought out each other’s warmth. Though their relationship might look the same to those around them, everything is different when they’re alone. As the two spend winter together for the first time, including birthday, Christmas, and New Year’s celebrations, they struggle to balance communication and the joy of surprise. How can they make each other happy, and where are they headed? Are marriage and child...

Where beasts run wild, and monsters are real.Darkness hides behind the clean, safe, and orderly facade of society in Akitsushima. In the slum known as the Masquerade, people indulge in a drug called Monster Tonic, which transforms them into animal-human hybrids. There are no laws or restrictions in this government-designated area, and it's rife with immorality, obscenity, and murder. When bodies turn up in the streets, the police don't investigate, so it’s up to Reiji and Getsu to track do...

JUST SIBLINGS, OR SOMETHING MORE?Yuuta and Saki begin a secret double life and a relationship they can’t name—they’re still siblings, but they’re also teens who might just be in love. It’s time for new experiences, like going on their first date, getting into fashion, attending a friend’s birthday party, and celebrating Halloween. They’ve lived their lives without expecting anything from others, but as they spend more and more time together, those feelings begin to change. And gradually, t...