Esper Harem in the Apocalypse

Rudy, a bright and diligent student from a modest background, was poised for a successful future, excelling academically and securing university placement. However, his life took a devastating turn on graduation day when a crippling accident at 23 rendered him disabled, shattering his aspirations and relationships. Facing mounting medical bills and despair, Rudy agreed to a gene experiment offered by a mysterious man from a research organization. The experiment appeared unsuccessful, and Rudy was abandoned to die, filled with regret. Upon his death, Rudy awakens in his high school days, now an esper with full psychic abilities due to the experiment's unexpected success. He resolves to live life to the fullest in this new reality. However, this parallel universe is a post-apocalyptic world where his newfound superpowers will become instrumental in his dominance. This is a harem novel, and readers can anticipate at least one yandere character.