Suicidal Otaku killed himself and met a Goddess who needed a soul to tether a multiversal reality to but was shocked when he said he wanted to go to the after life against his will he was given immortality unlike any other and a ability that every time he would "die" (would be killed but can't) his power would double making it even harder for him to die)
Ya kind of twisted but you know whatever lol. If you pick this up tell me I would love to read it.