Chat Group : Yotsuba Tatsuya

A young man from Earth is reincarnated as Tatsuya Yotsuba, the biological son of Maya Yotsuba—a figure who should never have existed in the original story. Yet this world no longer follows what he remembers. The Yotsuba Family, known for its coldness, turns out to be unexpectedly warm, while his mother hides secrets that slowly begin to surface. As if that weren’t enough, a mysterious chat group of fate-bound characters suddenly becomes tied to Tatsuya Yotsuba, disrupting both his life and destiny itself. Can Tatsuya Yotsuba survive—and live well—in a world that has begun to stray from its original fate? — Description from novelcodex.org