Things About Me Being Chosen by the Light

Light, the Giant of Light, Ultraman, these characters that do not exist in human eyes, appeared because of the encounter between an energy that does not belong to the earth and a young man, ancient monsters, space monsters, evil gods, some existences that humans cannot fight against, a cowardly and unruly boy, with trembling legs but still standing at the forefront, an unrecognized power, is it an enemy or a friend? This story takes place in the parallel universe of "The Incident That the Pitfall System Forced Me to Use the Villain Knight"