Fics like Intertwining Connections

Kawasaki Koki is the social older brother who wants to support all of his friends. Kawasaki Hoshiki is the antisocial younger brother who claims that he only needs his older brother. While both brothers are very intelligent, they're pretty much polar opposites. Different likes and dislikes, different friends... Different pretty much anything. But what if, one day, their lives take a turn for the worst?

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