It was a bond that, if severed, would result in death. Mariko gives birth to a son, Masato, but they're afflicted by a strange disease that will cause them to die of shock if the umbilical cord that connects them is cut. What are the concepts of "mother and child," "father and child," and "family"? This is a story of "the end of connection." (Source: Shogakukan, translated)

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Lilia is a misanthropist who lives while hiding the fact that she is a witch. Emma is a human who frequently comes to visit Lilia at her home. Set in the era when witch hunts took place, this is a story that illustrates the bonds of friendship. Source: Shogakukan

This is a sequel/side story of Colorful Box.

You Sahara has fallen in love with Airi Tachibana, the most beautiful girl in school, at first sight. After talking about it with his good-looking friend Arata Shindou, Arata says he'll set things up so that You can confess his feelings and ask her out. But when You goes to the place he was told, he sees Arata asking Airi out instead. You is obviously shocked after having been betrayed by his friend and seeing him steal the girl he liked away from him right before his eyes, so he immediately flees the scene. The next day, he enters the classroom to find out that for some strange reason, Arata has completely shaved his head. Even stranger, Airi starts assertively trying to get close to him, even though she should now have a boyfriend! As it turns out, the girl he likes is kind of dangerous! What will become of this thrilling and comedic romance with a mysterious girl who's totally out of his league?! Source: Shogakukan

*"Would my friends have felt regret or envy as they watched me suddenly transfer to Seoul?"* Shin-Bi, a neighborhood resident who's lived in the same place for 17 years, is forced to leave her beloved neighborhood and move to Seoul when her older brother, Shin-Hye, transfers to a preparatory school. Leaving her familiar surroundings and encountering new people... Shin-Bi, who has never met anyone before, yearns for her old neighborhood. Will she be able to navigate this sudden shift in her mindset? A tumultuous coming-of-age story of high school students on the brink of adulthood! (Source: Kakaopage, translated)