Youkoso Jitsuryoku Shijou Shugi no Kyoushitsu e - Volume 17, Chapter 5 Part 3

This is a story of an ordinary boy gaining unusual powers from his nightmares… It all started when Lin Sheng experienced something strange on what he thought was just another normal day. He begins to have recurring dreams that lead him on an incredible journey of discovery as he encounters spine-chilling monsters and elusive secrets.

- Description from Novelupdates

I’m in a secret, bad romance with a love dependent student—「Having a secret meeting with a student one is in charge of at school… Isn’t it exciting?」The special relationship with Kirihara that no one can know about began when I took up my post at Mori Kawara High School as a teacher.At school, she’s the serious student council president who has earned a lot of trust from other teachers, but when it’s just the two of us, she becomes mischievous, clingy, and jealous.On weekends, I cook meals at her place, play games together, and pamper her as if we were lovers.Unable to reject her because she knows my weakness, and despite knowing it’s wrong, we continue to pile up secrets little by little every day…「Sensei, my feelings of liking you have grown very strong.」As Kirihara openly confronts me with her feelings, the emotions I’ve been holding back grow even stronger.Even though it would all be over if it were exposed, that sense of immorality ironically only accelerates things further—

I, a mere con artist, was unjustly imprisoned in Tantalus, the Abyssal Prison meant for the most nefarious of criminals, where I met a regressor.

But when I used my ability to read her mind, I found out that I was fated to die in a year…

and that the world would end 10 years later.

Diagnosed with cancer, she decided to give up the baby in her womb.She had originally planned to have an abortion, get divorced, and then face the arrival of death calmly, hallowing he and his new love to be together.However, he didn't let her go easily. He lingered with her day and night as she grew weaker and weaker, just to leave a child for his infertile new lover.Lying on the hospital bed on the verge of death, she begged, “Take my life and just let me go.”The cold and aloof man knelt in front of her tombstone, holding her favorite gardenias, staying day and night, murmuring with red eyes, “Sweetie, come back. Please don't kidding me...”