Fics like No one, but you.

The first time Senku’s heart breaks, is when Tsukasa kills him. The second time Senku feels his heart break, is when he kills Tsukasa. '... if my soulmate truly exists... then it could only be you. No one, but you.' —————— Aka the soulmate version of Dr.Stone cuz Tsukasen are soulmates and author refuses to believe otherwise.

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