Eriko Sugita

Yuuta and Saki begin a secret double life and a relationship they can't name—they're still siblings, but they're also teens in love. Going on their…

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…

In a Japan that’s on the verge on ruin, he’s surviving alongside a cute underclassman! A sudden zombie outbreak ravages the country. Amidst the fleeing…

When Saki called Yuuta "Big Brother," it looked to everyone else like their relationship had taken a big step forward. In reality, it was more…

After nearly dying and being pieced back together, Masamichi has gotten used to working at the antique shop Bougyoudou for the handsome and mysterious Shino,…

A new lease on life and a chance for revenge… Masamichi almost died in a hit-and-run, only to be rescued by a mysterious and handsome…

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…

The worst—and last—day of his life! Masamichi Adachi left his hometown in the country to study agriculture at university. He prepared diligently for the exam,…

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…

FROM STRANGERS TO FAMILY When his father remarries, Yuuta Asamura winds up sharing a roof with a brand-new stepsister, who is also the hottest girl…