Quiescent | senku ishigami

Suzuki Saeki is a boy whose life was turned upside down by two events: the suicide of his older sister and the meeting with a young scientist, Ishigami Senku. With their meeting, two kindred souls are linked by a thread called "science"; resistant like tungsten and strong like diamond.
Senku had always thought of him as a quiescent volcano with his slow and calm way of doing things, perpetually sleepy, but whose gaze managed to light up more than anything else when they talked about science. Saeki, for his part, had immediately found Senku's unconditional love for that discipline interesting, even managing to include himself in those experiments of his without ever getting bored.
Ended up separated due to a series of events, it was a catastrophic situation that brought them together: a strange beam that petrified the whole humanity. The aforementioned meeting, however, took place between opposing sides.
What will they do? And who's the one who petrified humanity?
This second "stone world" ended up changing the cards on the table, not only for the fate of human beings, but also for the feelings of the two scientists.
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[Senku Ishigami x OC (main)] [Ryusui Nanami x OC; Asagiri Gen x OC]
[This story will follow the anime/manga until a certain arc. There will be an original ending!]
This work can be found on ao3 as well. It's a translation.